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    <link:label id="lab_trs_A3YearEpsCagrMetricMember_8FB64CB61CEB8A582200B4D988E44472_documentation_en-US" xlink:label="lab_trs_A3YearEpsCagrMetricMember_8FB64CB61CEB8A582200B4D988E44472" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Financial metric based on earnings per share (EPS) cumulative average growth rate ("EPS CAGR") over the performance period.</link:label>
    <link:loc xlink:href="trs-20150930.xsd#trs_A3YearEpsCagrMetricMember" xlink:label="loc_trs_A3YearEpsCagrMetricMember_8FB64CB61CEB8A582200B4D988E44472" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_trs_A3YearEpsCagrMetricMember_8FB64CB61CEB8A582200B4D988E44472" xlink:to="lab_trs_A3YearEpsCagrMetricMember_8FB64CB61CEB8A582200B4D988E44472" xlink:type="arc" />
    <link:label id="lab_trs_A20122013EpsCagrMetricMember_D6A1FAB17068E7DEF3A2B4D988E43F76_terseLabel_en-US" xlink:label="lab_trs_A20122013EpsCagrMetricMember_D6A1FAB17068E7DEF3A2B4D988E43F76" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">2012 &amp; 2013 EPS CAGR metric [Member]</link:label>
    <link:label id="lab_trs_A20122013EpsCagrMetricMember_D6A1FAB17068E7DEF3A2B4D988E43F76_label_en-US" xlink:label="lab_trs_A20122013EpsCagrMetricMember_D6A1FAB17068E7DEF3A2B4D988E43F76" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">2012 &amp; 2013 EPS CAGR metric [Member]</link:label>
    <link:label id="lab_trs_A20122013EpsCagrMetricMember_D6A1FAB17068E7DEF3A2B4D988E43F76_documentation_en-US" xlink:label="lab_trs_A20122013EpsCagrMetricMember_D6A1FAB17068E7DEF3A2B4D988E43F76" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Financial metric based on 2012 and 2013 earnings per share (EPS) cumulative average growth rate ("EPS CAGR").</link:label>
    <link:loc xlink:href="trs-20150930.xsd#trs_A20122013EpsCagrMetricMember" xlink:label="loc_trs_A20122013EpsCagrMetricMember_D6A1FAB17068E7DEF3A2B4D988E43F76" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_trs_A20122013EpsCagrMetricMember_D6A1FAB17068E7DEF3A2B4D988E43F76" xlink:to="lab_trs_A20122013EpsCagrMetricMember_D6A1FAB17068E7DEF3A2B4D988E43F76" xlink:type="arc" />
    <link:label id="lab_trs_CashgenerationmetricMemberMember_BD12E741641970B7C4BCB4D988E4F5F7_terseLabel_en-US" xlink:label="lab_trs_CashgenerationmetricMemberMember_BD12E741641970B7C4BCB4D988E4F5F7" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">3 year ROIC metric [Member]</link:label>
    <link:label id="lab_trs_CashgenerationmetricMemberMember_BD12E741641970B7C4BCB4D988E4F5F7_label_en-US" xlink:label="lab_trs_CashgenerationmetricMemberMember_BD12E741641970B7C4BCB4D988E4F5F7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash generation metric [Member] [Member]</link:label>
    <link:label id="lab_trs_CashgenerationmetricMemberMember_BD12E741641970B7C4BCB4D988E4F5F7_documentation_en-US" xlink:label="lab_trs_CashgenerationmetricMemberMember_BD12E741641970B7C4BCB4D988E4F5F7" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Cash generation metric [Member]</link:label>
    <link:loc xlink:href="trs-20150930.xsd#trs_CashgenerationmetricMemberMember" xlink:label="loc_trs_CashgenerationmetricMemberMember_BD12E741641970B7C4BCB4D988E4F5F7" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_trs_CashgenerationmetricMemberMember_BD12E741641970B7C4BCB4D988E4F5F7" xlink:to="lab_trs_CashgenerationmetricMemberMember_BD12E741641970B7C4BCB4D988E4F5F7" xlink:type="arc" />
    <link:label id="lab_us-gaap_PlanNameAxis_A7C5B7A3F7F48706F011B4D988E4E25A_terseLabel_en-US" xlink:label="lab_us-gaap_PlanNameAxis_A7C5B7A3F7F48706F011B4D988E4E25A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Plan Name [Axis]</link:label>
    <link:label id="lab_us-gaap_PlanNameAxis_A7C5B7A3F7F48706F011B4D988E4E25A_label_en-US" xlink:label="lab_us-gaap_PlanNameAxis_A7C5B7A3F7F48706F011B4D988E4E25A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Plan Name [Axis]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PlanNameAxis" xlink:label="loc_us-gaap_PlanNameAxis_A7C5B7A3F7F48706F011B4D988E4E25A" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PlanNameAxis_A7C5B7A3F7F48706F011B4D988E4E25A" xlink:to="lab_us-gaap_PlanNameAxis_A7C5B7A3F7F48706F011B4D988E4E25A" xlink:type="arc" />
    <link:label id="lab_us-gaap_PlanNameDomain_8557A30682A043515CF0B4D988E46B54_terseLabel_en-US" xlink:label="lab_us-gaap_PlanNameDomain_8557A30682A043515CF0B4D988E46B54" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Plan Name [Domain]</link:label>
    <link:label id="lab_us-gaap_PlanNameDomain_8557A30682A043515CF0B4D988E46B54_label_en-US" xlink:label="lab_us-gaap_PlanNameDomain_8557A30682A043515CF0B4D988E46B54" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Plan Name [Domain]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PlanNameDomain" xlink:label="loc_us-gaap_PlanNameDomain_8557A30682A043515CF0B4D988E46B54" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PlanNameDomain_8557A30682A043515CF0B4D988E46B54" xlink:to="lab_us-gaap_PlanNameDomain_8557A30682A043515CF0B4D988E46B54" xlink:type="arc" />
    <link:label id="lab_trs_Plan1Member_A1FB76400A977888A369B4D988E4F88D_terseLabel_en-US" xlink:label="lab_trs_Plan1Member_A1FB76400A977888A369B4D988E4F88D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Plan 1 [Member]</link:label>
    <link:label id="lab_trs_Plan1Member_A1FB76400A977888A369B4D988E4F88D_label_en-US" xlink:label="lab_trs_Plan1Member_A1FB76400A977888A369B4D988E4F88D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Plan 1 [Member]</link:label>
    <link:label id="lab_trs_Plan1Member_A1FB76400A977888A369B4D988E4F88D_documentation_en-US" xlink:label="lab_trs_Plan1Member_A1FB76400A977888A369B4D988E4F88D" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Equity-based compensation arrangement plan.</link:label>
    <link:loc xlink:href="trs-20150930.xsd#trs_Plan1Member" xlink:label="loc_trs_Plan1Member_A1FB76400A977888A369B4D988E4F88D" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_trs_Plan1Member_A1FB76400A977888A369B4D988E4F88D" xlink:to="lab_trs_Plan1Member_A1FB76400A977888A369B4D988E4F88D" xlink:type="arc" />
    <link:label id="lab_trs_Plan4Member_70DB0FA497536F1C1668B4D988E440ED_terseLabel_en-US" xlink:label="lab_trs_Plan4Member_70DB0FA497536F1C1668B4D988E440ED" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Plan 4 [Member]</link:label>
    <link:label id="lab_trs_Plan4Member_70DB0FA497536F1C1668B4D988E440ED_label_en-US" xlink:label="lab_trs_Plan4Member_70DB0FA497536F1C1668B4D988E440ED" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Plan 4 [Member]</link:label>
    <link:label id="lab_trs_Plan4Member_70DB0FA497536F1C1668B4D988E440ED_documentation_en-US" xlink:label="lab_trs_Plan4Member_70DB0FA497536F1C1668B4D988E440ED" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Equity-based compensation arrangement plan.</link:label>
    <link:loc xlink:href="trs-20150930.xsd#trs_Plan4Member" xlink:label="loc_trs_Plan4Member_70DB0FA497536F1C1668B4D988E440ED" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_trs_Plan4Member_70DB0FA497536F1C1668B4D988E440ED" xlink:to="lab_trs_Plan4Member_70DB0FA497536F1C1668B4D988E440ED" xlink:type="arc" />
    <link:label id="lab_trs_Plan3Member_2060170CA79DA698C8D9B4D988E4C270_terseLabel_en-US" xlink:label="lab_trs_Plan3Member_2060170CA79DA698C8D9B4D988E4C270" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Plan 3 [Member]</link:label>
    <link:label id="lab_trs_Plan3Member_2060170CA79DA698C8D9B4D988E4C270_label_en-US" xlink:label="lab_trs_Plan3Member_2060170CA79DA698C8D9B4D988E4C270" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Plan 3 [Member]</link:label>
    <link:label id="lab_trs_Plan3Member_2060170CA79DA698C8D9B4D988E4C270_documentation_en-US" xlink:label="lab_trs_Plan3Member_2060170CA79DA698C8D9B4D988E4C270" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Equity-based compensation arrangement plan.</link:label>
    <link:loc xlink:href="trs-20150930.xsd#trs_Plan3Member" xlink:label="loc_trs_Plan3Member_2060170CA79DA698C8D9B4D988E4C270" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_trs_Plan3Member_2060170CA79DA698C8D9B4D988E4C270" xlink:to="lab_trs_Plan3Member_2060170CA79DA698C8D9B4D988E4C270" xlink:type="arc" />
    <link:label id="lab_trs_Plan5Member_6A6B372E60EFABAF3EA8B4D988E4D7CF_terseLabel_en-US" xlink:label="lab_trs_Plan5Member_6A6B372E60EFABAF3EA8B4D988E4D7CF" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Plan 5 [Member]</link:label>
    <link:label id="lab_trs_Plan5Member_6A6B372E60EFABAF3EA8B4D988E4D7CF_label_en-US" xlink:label="lab_trs_Plan5Member_6A6B372E60EFABAF3EA8B4D988E4D7CF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Plan 5 [Member]</link:label>
    <link:label id="lab_trs_Plan5Member_6A6B372E60EFABAF3EA8B4D988E4D7CF_documentation_en-US" xlink:label="lab_trs_Plan5Member_6A6B372E60EFABAF3EA8B4D988E4D7CF" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Equity-based compensation arrangement plan.</link:label>
    <link:loc xlink:href="trs-20150930.xsd#trs_Plan5Member" xlink:label="loc_trs_Plan5Member_6A6B372E60EFABAF3EA8B4D988E4D7CF" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_trs_Plan5Member_6A6B372E60EFABAF3EA8B4D988E4D7CF" xlink:to="lab_trs_Plan5Member_6A6B372E60EFABAF3EA8B4D988E4D7CF" xlink:type="arc" />
    <link:label id="lab_trs_ServiceBasedRestricedSharesMember_365533216EB6ED46176BB4D988E5C60A_terseLabel_en-US" xlink:label="lab_trs_ServiceBasedRestricedSharesMember_365533216EB6ED46176BB4D988E5C60A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Service-based restriced shares [Member]</link:label>
    <link:label id="lab_trs_ServiceBasedRestricedSharesMember_365533216EB6ED46176BB4D988E5C60A_label_en-US" xlink:label="lab_trs_ServiceBasedRestricedSharesMember_365533216EB6ED46176BB4D988E5C60A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Service-based restriced shares [Member]</link:label>
    <link:label id="lab_trs_ServiceBasedRestricedSharesMember_365533216EB6ED46176BB4D988E5C60A_documentation_en-US" xlink:label="lab_trs_ServiceBasedRestricedSharesMember_365533216EB6ED46176BB4D988E5C60A" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Shares that an entity has not yet issued because the agreed-upon consideration, emplooyee services, has not yet been received</link:label>
    <link:loc xlink:href="trs-20150930.xsd#trs_ServiceBasedRestricedSharesMember" xlink:label="loc_trs_ServiceBasedRestricedSharesMember_365533216EB6ED46176BB4D988E5C60A" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_trs_ServiceBasedRestricedSharesMember_365533216EB6ED46176BB4D988E5C60A" xlink:to="lab_trs_ServiceBasedRestricedSharesMember_365533216EB6ED46176BB4D988E5C60A" xlink:type="arc" />
    <link:label id="lab_trs_PerformanceBasedRestricedSharesMember_92C544EBCD722A9B3182B4D988E511E4_terseLabel_en-US" xlink:label="lab_trs_PerformanceBasedRestricedSharesMember_92C544EBCD722A9B3182B4D988E511E4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Performance-based restriced shares [Member]</link:label>
    <link:label id="lab_trs_PerformanceBasedRestricedSharesMember_92C544EBCD722A9B3182B4D988E511E4_label_en-US" xlink:label="lab_trs_PerformanceBasedRestricedSharesMember_92C544EBCD722A9B3182B4D988E511E4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Performance-based restriced shares [Member]</link:label>
    <link:label id="lab_trs_PerformanceBasedRestricedSharesMember_92C544EBCD722A9B3182B4D988E511E4_documentation_en-US" xlink:label="lab_trs_PerformanceBasedRestricedSharesMember_92C544EBCD722A9B3182B4D988E511E4" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Performance-based restriced shares award.</link:label>
    <link:loc xlink:href="trs-20150930.xsd#trs_PerformanceBasedRestricedSharesMember" xlink:label="loc_trs_PerformanceBasedRestricedSharesMember_92C544EBCD722A9B3182B4D988E511E4" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_trs_PerformanceBasedRestricedSharesMember_92C544EBCD722A9B3182B4D988E511E4" xlink:to="lab_trs_PerformanceBasedRestricedSharesMember_92C544EBCD722A9B3182B4D988E511E4" xlink:type="arc" />
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    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_0650DBB493E721D7AC09B4D988E5CDE5_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_0650DBB493E721D7AC09B4D988E5CDE5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award [Line Items]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_0650DBB493E721D7AC09B4D988E5CDE5" xlink:type="locator" />
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    <link:label id="lab_trs_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardPercentageEarnedBasedOnMetricOverPerformancePeriod_DDDBBD6E8C1A31ED58B7B4D988E5CC33_terseLabel_en-US" xlink:label="lab_trs_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardPercentageEarnedBasedOnMetricOverPerformancePeriod_DDDBBD6E8C1A31ED58B7B4D988E5CC33" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Award percentage earned based on metric over the performance period</link:label>
    <link:label id="lab_trs_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardPercentageEarnedBasedOnMetricOverPerformancePeriod_DDDBBD6E8C1A31ED58B7B4D988E5CC33_label_en-US" xlink:label="lab_trs_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardPercentageEarnedBasedOnMetricOverPerformancePeriod_DDDBBD6E8C1A31ED58B7B4D988E5CC33" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Award percentage earned based on metric over the performance period</link:label>
    <link:label id="lab_trs_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardPercentageEarnedBasedOnMetricOverPerformancePeriod_DDDBBD6E8C1A31ED58B7B4D988E5CC33_documentation_en-US" xlink:label="lab_trs_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardPercentageEarnedBasedOnMetricOverPerformancePeriod_DDDBBD6E8C1A31ED58B7B4D988E5CC33" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Award percentage earned based on metric over the performance period.</link:label>
    <link:loc xlink:href="trs-20150930.xsd#trs_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardPercentageEarnedBasedOnMetricOverPerformancePeriod" xlink:label="loc_trs_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardPercentageEarnedBasedOnMetricOverPerformancePeriod_DDDBBD6E8C1A31ED58B7B4D988E5CC33" xlink:type="locator" />
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    <link:label id="lab_us-gaap_ProceedsFromBankDebt_DBBA816AA5C642B8BEE2A9990CF22A7B_label_en-US" xlink:label="lab_us-gaap_ProceedsFromBankDebt_DBBA816AA5C642B8BEE2A9990CF22A7B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Proceeds from Bank Debt</link:label>
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    <link:label id="lab_trs_DeferredPurchasePriceAmountPaidin2015_1A4B4FA6D4D61134880AA9990CF32A0B_terseLabel_en-US" xlink:label="lab_trs_DeferredPurchasePriceAmountPaidin2015_1A4B4FA6D4D61134880AA9990CF32A0B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Payments for deferred purchase price</link:label>
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    <link:loc xlink:href="trs-20150930.xsd#trs_DeferredPurchasePriceAmountPaidin2015" xlink:label="loc_trs_DeferredPurchasePriceAmountPaidin2015_1A4B4FA6D4D61134880AA9990CF32A0B" xlink:type="locator" />
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    <link:label id="lab_us-gaap_ProceedsFromStockOptionsExercised_5E16413235451BE78070A9990CF36C01_terseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromStockOptionsExercised_5E16413235451BE78070A9990CF36C01" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Proceeds from exercise of stock options</link:label>
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    <link:label id="lab_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_645919B74B7F77BF04B1A9990CF3CF15_label_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_645919B74B7F77BF04B1A9990CF3CF15" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash and Cash Equivalents, Period Increase (Decrease)</link:label>
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    <link:label id="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_AC573CD78A6ECEC7C29BA9990CF3A3C7_periodStartLabel_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_AC573CD78A6ECEC7C29BA9990CF3A3C7" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">At beginning of period</link:label>
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    <link:label id="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_698405B7444F504CFB3EA9990CF3A8D0_periodEndLabel_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_698405B7444F504CFB3EA9990CF3A8D0" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">At end of period</link:label>
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    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_698405B7444F504CFB3EA9990CF3A8D0" xlink:to="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_698405B7444F504CFB3EA9990CF3A8D0" xlink:type="arc" />
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    <link:label id="lab_us-gaap_InterestPaidNet_E749BCF97B840AAE5746A9990CF32C1D_terseLabel_en-US" xlink:label="lab_us-gaap_InterestPaidNet_E749BCF97B840AAE5746A9990CF32C1D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash paid for interest</link:label>
    <link:label id="lab_us-gaap_InterestPaidNet_E749BCF97B840AAE5746A9990CF32C1D_label_en-US" xlink:label="lab_us-gaap_InterestPaidNet_E749BCF97B840AAE5746A9990CF32C1D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest Paid, Net</link:label>
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    <link:label id="lab_us-gaap_IncomeTaxesPaid_710E2AD18708D7F76556A9990CF3291D_terseLabel_en-US" xlink:label="lab_us-gaap_IncomeTaxesPaid_710E2AD18708D7F76556A9990CF3291D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash paid for taxes</link:label>
    <link:label id="lab_us-gaap_IncomeTaxesPaid_710E2AD18708D7F76556A9990CF3291D_label_en-US" xlink:label="lab_us-gaap_IncomeTaxesPaid_710E2AD18708D7F76556A9990CF3291D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Income Taxes Paid</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncomeTaxesPaid" xlink:label="loc_us-gaap_IncomeTaxesPaid_710E2AD18708D7F76556A9990CF3291D" xlink:type="locator" />
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    <link:label id="lab_us-gaap_RestrictedStockMember_238EFC2CE8437C91FA912249C04A144A_terseLabel_en-US" xlink:label="lab_us-gaap_RestrictedStockMember_238EFC2CE8437C91FA912249C04A144A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Restricted Stock [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RestrictedStockMember" xlink:label="loc_us-gaap_RestrictedStockMember_238EFC2CE8437C91FA912249C04A144A" xlink:type="locator" />
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    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_BA0C09EDE99283D84A6C2249C04A5020_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_BA0C09EDE99283D84A6C2249C04A5020" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of options granted</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_BA0C09EDE99283D84A6C2249C04A5020_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_BA0C09EDE99283D84A6C2249C04A5020" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_BA0C09EDE99283D84A6C2249C04A5020" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_BA0C09EDE99283D84A6C2249C04A5020" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_BA0C09EDE99283D84A6C2249C04A5020" xlink:type="arc" />
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber_2B22048634DA3AAFD36D2249C04ABC7F_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber_2B22048634DA3AAFD36D2249C04ABC7F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Exercisable stock options</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber_2B22048634DA3AAFD36D2249C04ABC7F_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber_2B22048634DA3AAFD36D2249C04ABC7F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Number</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber_2B22048634DA3AAFD36D2249C04ABC7F" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber_2B22048634DA3AAFD36D2249C04ABC7F" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber_2B22048634DA3AAFD36D2249C04ABC7F" xlink:type="arc" />
    <link:label id="lab_trs_StockOptionsVested_F925AF92FC0BEEC19F842249C04AFC7C_terseLabel_en-US" xlink:label="lab_trs_StockOptionsVested_F925AF92FC0BEEC19F842249C04AFC7C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Stock Options Vested</link:label>
    <link:label id="lab_trs_StockOptionsVested_F925AF92FC0BEEC19F842249C04AFC7C_label_en-US" xlink:label="lab_trs_StockOptionsVested_F925AF92FC0BEEC19F842249C04AFC7C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock Options Vested</link:label>
    <link:label id="lab_trs_StockOptionsVested_F925AF92FC0BEEC19F842249C04AFC7C_documentation_en-US" xlink:label="lab_trs_StockOptionsVested_F925AF92FC0BEEC19F842249C04AFC7C" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Stock Options Vested</link:label>
    <link:loc xlink:href="trs-20150930.xsd#trs_StockOptionsVested" xlink:label="loc_trs_StockOptionsVested_F925AF92FC0BEEC19F842249C04AFC7C" xlink:type="locator" />
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1_B66DF32A4D5EF058640F2249C04AE9D9" xlink:type="locator" />
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    <link:label id="lab_us-gaap_LongtermDebtTypeAxis_8D2F7EFB589F2E9E6F8BB399E41C2439_terseLabel_en-US" xlink:label="lab_us-gaap_LongtermDebtTypeAxis_8D2F7EFB589F2E9E6F8BB399E41C2439" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Long-term Debt, Type [Axis]</link:label>
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    <link:label id="lab_us-gaap_LongtermDebtTypeDomain_40BC8FF873D4ADE897DCB399E41CB3EB_terseLabel_en-US" xlink:label="lab_us-gaap_LongtermDebtTypeDomain_40BC8FF873D4ADE897DCB399E41CB3EB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Long-term Debt, Type [Domain]</link:label>
    <link:label id="lab_us-gaap_LongtermDebtTypeDomain_40BC8FF873D4ADE897DCB399E41CB3EB_label_en-US" xlink:label="lab_us-gaap_LongtermDebtTypeDomain_40BC8FF873D4ADE897DCB399E41CB3EB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Long-term Debt, Type [Domain]</link:label>
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    <link:label id="lab_trs_SeniorSecuredTermLoanMember_0C03D375847276894F9BB399E41C56C2_terseLabel_en-US" xlink:label="lab_trs_SeniorSecuredTermLoanMember_0C03D375847276894F9BB399E41C56C2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Senior Secured Term Loan A [Member]</link:label>
    <link:label id="lab_trs_SeniorSecuredTermLoanMember_0C03D375847276894F9BB399E41C56C2_label_en-US" xlink:label="lab_trs_SeniorSecuredTermLoanMember_0C03D375847276894F9BB399E41C56C2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Senior Secured Term Loan A [Member]</link:label>
    <link:label id="lab_trs_SeniorSecuredTermLoanMember_0C03D375847276894F9BB399E41C56C2_documentation_en-US" xlink:label="lab_trs_SeniorSecuredTermLoanMember_0C03D375847276894F9BB399E41C56C2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Senior Secured Term Loan A [Member]</link:label>
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    <link:label id="lab_trs_USBankDebtAndReceivablesFacilityMember_CC87E787AA6AB7B2AB74B399E41C3E6D_terseLabel_en-US" xlink:label="lab_trs_USBankDebtAndReceivablesFacilityMember_CC87E787AA6AB7B2AB74B399E41C3E6D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">U.S. bank debt and receivables facility [Member]</link:label>
    <link:label id="lab_trs_USBankDebtAndReceivablesFacilityMember_CC87E787AA6AB7B2AB74B399E41C3E6D_label_en-US" xlink:label="lab_trs_USBankDebtAndReceivablesFacilityMember_CC87E787AA6AB7B2AB74B399E41C3E6D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">U.S. bank debt and receivables facility [Member]</link:label>
    <link:label id="lab_trs_USBankDebtAndReceivablesFacilityMember_CC87E787AA6AB7B2AB74B399E41C3E6D_documentation_en-US" xlink:label="lab_trs_USBankDebtAndReceivablesFacilityMember_CC87E787AA6AB7B2AB74B399E41C3E6D" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Contractual arrangement with a lender under which borrowings can be made up to a specific amount at any point in time, and under which borrowings outstanding may be either short-term or long-term, depending upon the particulars, inside the reporting entity's home country; and, collateralized debt obligation backed by, for example, but not limited to, pledge, mortgage or other lien on the entity's assets.</link:label>
    <link:loc xlink:href="trs-20150930.xsd#trs_USBankDebtAndReceivablesFacilityMember" xlink:label="loc_trs_USBankDebtAndReceivablesFacilityMember_CC87E787AA6AB7B2AB74B399E41C3E6D" xlink:type="locator" />
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    <link:label id="lab_trs_RevolvingCreditAndTermLoanFacilitiesMember_163A19DAB807F0930466B399E41C5D60_terseLabel_en-US" xlink:label="lab_trs_RevolvingCreditAndTermLoanFacilitiesMember_163A19DAB807F0930466B399E41C5D60" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Revolving credit and term loan facilities [Member]</link:label>
    <link:label id="lab_trs_RevolvingCreditAndTermLoanFacilitiesMember_163A19DAB807F0930466B399E41C5D60_label_en-US" xlink:label="lab_trs_RevolvingCreditAndTermLoanFacilitiesMember_163A19DAB807F0930466B399E41C5D60" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Revolving credit and term loan facilities [Member]</link:label>
    <link:label id="lab_trs_RevolvingCreditAndTermLoanFacilitiesMember_163A19DAB807F0930466B399E41C5D60_documentation_en-US" xlink:label="lab_trs_RevolvingCreditAndTermLoanFacilitiesMember_163A19DAB807F0930466B399E41C5D60" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Debt arrangement in which loan proceeds can continuously be obtained following repayments, but the total amount borrowed cannot exceed a specified maximum amount; as well as debt instruments with maturities ranging from five to ten years.</link:label>
    <link:loc xlink:href="trs-20150930.xsd#trs_RevolvingCreditAndTermLoanFacilitiesMember" xlink:label="loc_trs_RevolvingCreditAndTermLoanFacilitiesMember_163A19DAB807F0930466B399E41C5D60" xlink:type="locator" />
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    <link:label id="lab_us-gaap_DebtInstrumentLineItems_F7528AECA898CAB6471DB399E41CE35C_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentLineItems_F7528AECA898CAB6471DB399E41CE35C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Debt Instrument [Line Items]</link:label>
    <link:label id="lab_us-gaap_DebtInstrumentLineItems_F7528AECA898CAB6471DB399E41CE35C_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentLineItems_F7528AECA898CAB6471DB399E41CE35C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Instrument [Line Items]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DebtInstrumentLineItems" xlink:label="loc_us-gaap_DebtInstrumentLineItems_F7528AECA898CAB6471DB399E41CE35C" xlink:type="locator" />
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DebtInstrumentUnusedBorrowingCapacityAmount" xlink:label="loc_us-gaap_DebtInstrumentUnusedBorrowingCapacityAmount_FD72812A7346B2BBD10BB399E41C25C4" xlink:type="locator" />
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    <link:label id="lab_us-gaap_DebtInstrumentPeriodicPaymentPrincipal_E653AFE1227D2705D443B399E41C7289_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentPeriodicPaymentPrincipal_E653AFE1227D2705D443B399E41C7289" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Debt Instrument, Periodic Payment, Principal</link:label>
    <link:label id="lab_us-gaap_DebtInstrumentPeriodicPaymentPrincipal_E653AFE1227D2705D443B399E41C7289_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentPeriodicPaymentPrincipal_E653AFE1227D2705D443B399E41C7289" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Instrument, Periodic Payment, Principal</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DebtInstrumentPeriodicPaymentPrincipal" xlink:label="loc_us-gaap_DebtInstrumentPeriodicPaymentPrincipal_E653AFE1227D2705D443B399E41C7289" xlink:type="locator" />
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity" xlink:label="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_3E55EC18E5F6133CDF86B399E41CB594" xlink:type="locator" />
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    <link:label id="lab_us-gaap_PaymentsOfFinancingCosts_ADA547186EABF1028C0FB399E41C9132_terseLabel_en-US" xlink:label="lab_us-gaap_PaymentsOfFinancingCosts_ADA547186EABF1028C0FB399E41C9132" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Payments of Financing Costs</link:label>
    <link:label id="lab_us-gaap_PaymentsOfFinancingCosts_ADA547186EABF1028C0FB399E41C9132_label_en-US" xlink:label="lab_us-gaap_PaymentsOfFinancingCosts_ADA547186EABF1028C0FB399E41C9132" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Payments of Financing Costs</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PaymentsOfFinancingCosts" xlink:label="loc_us-gaap_PaymentsOfFinancingCosts_ADA547186EABF1028C0FB399E41C9132" xlink:type="locator" />
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    <link:label id="lab_us-gaap_DeferredFinanceCostsNoncurrentNet_7D2EC9B57460C670C577B399E41C5B93_terseLabel_en-US" xlink:label="lab_us-gaap_DeferredFinanceCostsNoncurrentNet_7D2EC9B57460C670C577B399E41C5B93" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Deferred Finance Costs, Noncurrent, Net</link:label>
    <link:label id="lab_us-gaap_DeferredFinanceCostsNoncurrentNet_7D2EC9B57460C670C577B399E41C5B93_label_en-US" xlink:label="lab_us-gaap_DeferredFinanceCostsNoncurrentNet_7D2EC9B57460C670C577B399E41C5B93" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred Finance Costs, Noncurrent, Net</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DeferredFinanceCostsNoncurrentNet" xlink:label="loc_us-gaap_DeferredFinanceCostsNoncurrentNet_7D2EC9B57460C670C577B399E41C5B93" xlink:type="locator" />
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    <link:label id="lab_us-gaap_DebtIssuanceCosts_19C07F4E2CAE420E400DB399E41CF586_terseLabel_en-US" xlink:label="lab_us-gaap_DebtIssuanceCosts_19C07F4E2CAE420E400DB399E41CF586" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Debt Issuance Cost</link:label>
    <link:label id="lab_us-gaap_DebtIssuanceCosts_19C07F4E2CAE420E400DB399E41CF586_label_en-US" xlink:label="lab_us-gaap_DebtIssuanceCosts_19C07F4E2CAE420E400DB399E41CF586" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Issuance Cost</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DebtIssuanceCosts" xlink:label="loc_us-gaap_DebtIssuanceCosts_19C07F4E2CAE420E400DB399E41CF586" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtIssuanceCosts_19C07F4E2CAE420E400DB399E41CF586" xlink:to="lab_us-gaap_DebtIssuanceCosts_19C07F4E2CAE420E400DB399E41CF586" xlink:type="arc" />
    <link:label id="lab_us-gaap_WriteOffOfDeferredDebtIssuanceCost_79B5AC114C888731D5DFB399E41C44CC_terseLabel_en-US" xlink:label="lab_us-gaap_WriteOffOfDeferredDebtIssuanceCost_79B5AC114C888731D5DFB399E41C44CC" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Write off of Deferred Debt Issuance Cost</link:label>
    <link:label id="lab_us-gaap_WriteOffOfDeferredDebtIssuanceCost_79B5AC114C888731D5DFB399E41C44CC_label_en-US" xlink:label="lab_us-gaap_WriteOffOfDeferredDebtIssuanceCost_79B5AC114C888731D5DFB399E41C44CC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Write off of Deferred Debt Issuance Cost</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_WriteOffOfDeferredDebtIssuanceCost" xlink:label="loc_us-gaap_WriteOffOfDeferredDebtIssuanceCost_79B5AC114C888731D5DFB399E41C44CC" xlink:type="locator" />
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    <link:label id="lab_us-gaap_LineOfCreditFacilityCapacityAvailableForSpecificPurposeOtherThanForTradePurchases_101A47879AB0FA3227FFB399E41C69CD_terseLabel_en-US" xlink:label="lab_us-gaap_LineOfCreditFacilityCapacityAvailableForSpecificPurposeOtherThanForTradePurchases_101A47879AB0FA3227FFB399E41C69CD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Revolving Credit Facility, Capacity Available for Foreign Revolver Loans</link:label>
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    <link:label id="lab_us-gaap_DebtInstrumentMaturityDate_815F98D3E0DA11CCCFB2B399E41C8643_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentMaturityDate_815F98D3E0DA11CCCFB2B399E41C8643" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Debt Instrument, Maturity Date</link:label>
    <link:label id="lab_us-gaap_DebtInstrumentMaturityDate_815F98D3E0DA11CCCFB2B399E41C8643_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentMaturityDate_815F98D3E0DA11CCCFB2B399E41C8643" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Instrument, Maturity Date</link:label>
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    <link:label id="lab_us-gaap_DebtInstrumentFaceAmount_53CC813E4676DAF3175EB399E41CCCA9_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentFaceAmount_53CC813E4676DAF3175EB399E41CCCA9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Instrument, Face Amount</link:label>
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    <link:label id="lab_trs_IncrementalDebtCommitmentsCapacity_8F0EFAA2990C26587A6CB399E41CED48_terseLabel_en-US" xlink:label="lab_trs_IncrementalDebtCommitmentsCapacity_8F0EFAA2990C26587A6CB399E41CED48" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Incremental debt commitments capacity</link:label>
    <link:label id="lab_trs_IncrementalDebtCommitmentsCapacity_8F0EFAA2990C26587A6CB399E41CED48_label_en-US" xlink:label="lab_trs_IncrementalDebtCommitmentsCapacity_8F0EFAA2990C26587A6CB399E41CED48" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Incremental debt commitments capacity</link:label>
    <link:label id="lab_trs_IncrementalDebtCommitmentsCapacity_8F0EFAA2990C26587A6CB399E41CED48_documentation_en-US" xlink:label="lab_trs_IncrementalDebtCommitmentsCapacity_8F0EFAA2990C26587A6CB399E41CED48" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Incremental debt commitments capacity.</link:label>
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    <link:label id="lab_trs_NetLeverageRatio_FE29DAD31CD714FB93A0B399E41C737F_label_en-US" xlink:label="lab_trs_NetLeverageRatio_FE29DAD31CD714FB93A0B399E41C737F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net leverage ratio</link:label>
    <link:label id="lab_trs_NetLeverageRatio_FE29DAD31CD714FB93A0B399E41C737F_documentation_en-US" xlink:label="lab_trs_NetLeverageRatio_FE29DAD31CD714FB93A0B399E41C737F" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Net leverage ratio, as defined</link:label>
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    <link:label id="lab_trs_RequiredprepaymentsundertermloanAfacility_89BEF4D871FC7F439699B399E41C65FB_documentation_en-US" xlink:label="lab_trs_RequiredprepaymentsundertermloanAfacility_89BEF4D871FC7F439699B399E41C65FB" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Required prepayments under term loan A facility</link:label>
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    <link:label id="lab_trs_LetterOfCreditMaximumBorrowingCapacity_30D724C24786A4EA4B87B399E41CBB29_terseLabel_en-US" xlink:label="lab_trs_LetterOfCreditMaximumBorrowingCapacity_30D724C24786A4EA4B87B399E41CBB29" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Letters of Credit, Maximum Borrowing Capacity</link:label>
    <link:label id="lab_trs_LetterOfCreditMaximumBorrowingCapacity_30D724C24786A4EA4B87B399E41CBB29_label_en-US" xlink:label="lab_trs_LetterOfCreditMaximumBorrowingCapacity_30D724C24786A4EA4B87B399E41CBB29" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Letter of Credit, Maximum Borrowing Capacity</link:label>
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    <link:label id="lab_us-gaap_LineOfCredit_4B798A737114A5659050B399E41C93BD_label_en-US" xlink:label="lab_us-gaap_LineOfCredit_4B798A737114A5659050B399E41C93BD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Long-term Line of Credit</link:label>
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    <link:label id="lab_trs_LongTermDebtFairValueOfParValue_053732DDCB1A2F0E11B0B399E41C999D_terseLabel_en-US" xlink:label="lab_trs_LongTermDebtFairValueOfParValue_053732DDCB1A2F0E11B0B399E41C999D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Long-term Debt, Fair Value, % of par value</link:label>
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    <link:label id="lab_trs_LongTermDebtFairValueOfParValue_053732DDCB1A2F0E11B0B399E41C999D_documentation_en-US" xlink:label="lab_trs_LongTermDebtFairValueOfParValue_053732DDCB1A2F0E11B0B399E41C999D" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The fair value of long-term debt presented as a % of par value.</link:label>
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    <link:label id="lab_us-gaap_ShortTermDebtTypeAxis_1C3CD3B8C2CA7896B19BB36EE1F19629_label_en-US" xlink:label="lab_us-gaap_ShortTermDebtTypeAxis_1C3CD3B8C2CA7896B19BB36EE1F19629" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Short-term Debt, Type [Axis]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShortTermDebtTypeAxis" xlink:label="loc_us-gaap_ShortTermDebtTypeAxis_1C3CD3B8C2CA7896B19BB36EE1F19629" xlink:type="locator" />
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    <link:label id="lab_us-gaap_ShortTermDebtTypeDomain_36B080F68D5E9878C7C4B36EE1F162FE_label_en-US" xlink:label="lab_us-gaap_ShortTermDebtTypeDomain_36B080F68D5E9878C7C4B36EE1F162FE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Short-term Debt, Type [Domain]</link:label>
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    <link:label id="lab_trs_OverdraftFacilityMember_9A0CAA52A0DC099A8F98B36EE1F18D38_terseLabel_en-US" xlink:label="lab_trs_OverdraftFacilityMember_9A0CAA52A0DC099A8F98B36EE1F18D38" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Overdraft Facility [Member]</link:label>
    <link:label id="lab_trs_OverdraftFacilityMember_9A0CAA52A0DC099A8F98B36EE1F18D38_label_en-US" xlink:label="lab_trs_OverdraftFacilityMember_9A0CAA52A0DC099A8F98B36EE1F18D38" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Overdraft Facility [Member]</link:label>
    <link:label id="lab_trs_OverdraftFacilityMember_9A0CAA52A0DC099A8F98B36EE1F18D38_documentation_en-US" xlink:label="lab_trs_OverdraftFacilityMember_9A0CAA52A0DC099A8F98B36EE1F18D38" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Overdraft Facility [Member]</link:label>
    <link:loc xlink:href="trs-20150930.xsd#trs_OverdraftFacilityMember" xlink:label="loc_trs_OverdraftFacilityMember_9A0CAA52A0DC099A8F98B36EE1F18D38" xlink:type="locator" />
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    <link:label id="lab_us-gaap_SecuredDebtMember_90CD9BA08054E233948AB36EE1F14F44_terseLabel_en-US" xlink:label="lab_us-gaap_SecuredDebtMember_90CD9BA08054E233948AB36EE1F14F44" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Receivables Facility [Member]</link:label>
    <link:label id="lab_us-gaap_SecuredDebtMember_90CD9BA08054E233948AB36EE1F14F44_label_en-US" xlink:label="lab_us-gaap_SecuredDebtMember_90CD9BA08054E233948AB36EE1F14F44" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Secured Debt [Member]</link:label>
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    <link:label id="lab_us-gaap_SecuredDebt_5CC6038030300237A537B36EE1F101A9_terseLabel_en-US" xlink:label="lab_us-gaap_SecuredDebt_5CC6038030300237A537B36EE1F101A9" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Secured Debt</link:label>
    <link:label id="lab_us-gaap_SecuredDebt_5CC6038030300237A537B36EE1F101A9_label_en-US" xlink:label="lab_us-gaap_SecuredDebt_5CC6038030300237A537B36EE1F101A9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Secured Debt</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SecuredDebt" xlink:label="loc_us-gaap_SecuredDebt_5CC6038030300237A537B36EE1F101A9" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SecuredDebt_5CC6038030300237A537B36EE1F101A9" xlink:to="lab_us-gaap_SecuredDebt_5CC6038030300237A537B36EE1F101A9" xlink:type="arc" />
    <link:label id="lab_trs_SecuredDebtMaximumBorrowingCapacity_DCAA7177049FC5E762C3B36EE1F11B0E_terseLabel_en-US" xlink:label="lab_trs_SecuredDebtMaximumBorrowingCapacity_DCAA7177049FC5E762C3B36EE1F11B0E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Secured debt, Maximum Borrowing Capacity</link:label>
    <link:label id="lab_trs_SecuredDebtMaximumBorrowingCapacity_DCAA7177049FC5E762C3B36EE1F11B0E_label_en-US" xlink:label="lab_trs_SecuredDebtMaximumBorrowingCapacity_DCAA7177049FC5E762C3B36EE1F11B0E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Secured debt, Maximum Borrowing Capacity</link:label>
    <link:label id="lab_trs_SecuredDebtMaximumBorrowingCapacity_DCAA7177049FC5E762C3B36EE1F11B0E_documentation_en-US" xlink:label="lab_trs_SecuredDebtMaximumBorrowingCapacity_DCAA7177049FC5E762C3B36EE1F11B0E" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Maximum borrowing capacity under the receivables facility debt arrangement.</link:label>
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    <link:label id="lab_us-gaap_DebtInstrumentUnusedBorrowingCapacityAmount_3890FC5DD5F55B2390B9B36EE1F19D4E_verboseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentUnusedBorrowingCapacityAmount_3890FC5DD5F55B2390B9B36EE1F19D4E" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Receivables facility debt available but not utilized</link:label>
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    <link:label id="lab_trs_ReceivablesFacililtyDebtAggregateCosts_F0612075330ED40DBAA0B36EE1F1F511_terseLabel_en-US" xlink:label="lab_trs_ReceivablesFacililtyDebtAggregateCosts_F0612075330ED40DBAA0B36EE1F1F511" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Receivables facililty, debt aggregate costs</link:label>
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    <link:label id="lab_trs_ReceivablesFacililtyDebtAggregateCosts_F0612075330ED40DBAA0B36EE1F1F511_documentation_en-US" xlink:label="lab_trs_ReceivablesFacililtyDebtAggregateCosts_F0612075330ED40DBAA0B36EE1F1F511" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Amount of the fee that accompanies borrowing money under the debt instrument.</link:label>
    <link:loc xlink:href="trs-20150930.xsd#trs_ReceivablesFacililtyDebtAggregateCosts" xlink:label="loc_trs_ReceivablesFacililtyDebtAggregateCosts_F0612075330ED40DBAA0B36EE1F1F511" xlink:type="locator" />
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    <link:label id="lab_trs_DebtInstrumentUnusedBorrowingCapacityFeePercentage_CBE8FB5E1CDB4BBDE50DB36EE1F1D18D_terseLabel_en-US" xlink:label="lab_trs_DebtInstrumentUnusedBorrowingCapacityFeePercentage_CBE8FB5E1CDB4BBDE50DB36EE1F1D18D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Debt Instrument, Unused Borrowing Capacity, Fee percentage</link:label>
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    <link:label id="lab_trs_DebtInstrumentUnusedBorrowingCapacityFeePercentage_CBE8FB5E1CDB4BBDE50DB36EE1F1D18D_documentation_en-US" xlink:label="lab_trs_DebtInstrumentUnusedBorrowingCapacityFeePercentage_CBE8FB5E1CDB4BBDE50DB36EE1F1D18D" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Debt Instrument, Unused Borrowing Capacity, Fee percentage</link:label>
    <link:loc xlink:href="trs-20150930.xsd#trs_DebtInstrumentUnusedBorrowingCapacityFeePercentage" xlink:label="loc_trs_DebtInstrumentUnusedBorrowingCapacityFeePercentage_CBE8FB5E1CDB4BBDE50DB36EE1F1D18D" xlink:type="locator" />
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    <link:label id="lab_us-gaap_ShortTermDebtPercentageBearingVariableInterestRate_9260C96731E9B2E09F45B36EE1FB05E4_terseLabel_en-US" xlink:label="lab_us-gaap_ShortTermDebtPercentageBearingVariableInterestRate_9260C96731E9B2E09F45B36EE1FB05E4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Short-term Debt, Percentage Bearing Variable Interest Rate</link:label>
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShortTermDebtPercentageBearingVariableInterestRate" xlink:label="loc_us-gaap_ShortTermDebtPercentageBearingVariableInterestRate_9260C96731E9B2E09F45B36EE1FB05E4" xlink:type="locator" />
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    <link:label id="lab_trs_AverageliquidationperiodReceivablespool_355B41793BA22536F3B2B36EE1FBE1B3_terseLabel_en-US" xlink:label="lab_trs_AverageliquidationperiodReceivablespool_355B41793BA22536F3B2B36EE1FBE1B3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Average liquidation period, Receivables pool</link:label>
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    <link:label id="lab_trs_AverageliquidationperiodReceivablespool_355B41793BA22536F3B2B36EE1FBE1B3_documentation_en-US" xlink:label="lab_trs_AverageliquidationperiodReceivablespool_355B41793BA22536F3B2B36EE1FBE1B3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Average liquidation period, Receivables pool</link:label>
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    <link:label id="lab_trs_AverageDiscountRateReceivablesFacility_34DAE769A84D8DA738E1B36EE1FB3490_terseLabel_en-US" xlink:label="lab_trs_AverageDiscountRateReceivablesFacility_34DAE769A84D8DA738E1B36EE1FB3490" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Average discount rate, Receivables facility</link:label>
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    <link:label id="lab_trs_AverageDiscountRateReceivablesFacility_34DAE769A84D8DA738E1B36EE1FB3490_documentation_en-US" xlink:label="lab_trs_AverageDiscountRateReceivablesFacility_34DAE769A84D8DA738E1B36EE1FB3490" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The average discount rate utilized to calculate the present value of the receivables sold under the facility debt arrangement.</link:label>
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    <link:label id="lab_us-gaap_ScheduleOfGoodwillTable_EDB51D7DC91CD59DFACBA5B740E9F7C0_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfGoodwillTable_EDB51D7DC91CD59DFACBA5B740E9F7C0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of Goodwill [Table]</link:label>
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