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    <link:label id="lab_us-gaap_LongTermDebtCurrent_6818CE16AF1BA6539701651ACF75BF64_terseLabel_en-US" xlink:label="lab_us-gaap_LongTermDebtCurrent_6818CE16AF1BA6539701651ACF75BF64" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Current maturities of long-term debt</link:label>
    <link:label id="lab_us-gaap_LongTermDebtCurrent_6818CE16AF1BA6539701651ACF75BF64_label_en-US" xlink:label="lab_us-gaap_LongTermDebtCurrent_6818CE16AF1BA6539701651ACF75BF64" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Long-term Debt, Current Maturities</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongTermDebtCurrent" xlink:label="loc_us-gaap_LongTermDebtCurrent_6818CE16AF1BA6539701651ACF75BF64" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LongTermDebtCurrent_6818CE16AF1BA6539701651ACF75BF64" xlink:to="lab_us-gaap_LongTermDebtCurrent_6818CE16AF1BA6539701651ACF75BF64" xlink:type="arc" />
    <link:label id="lab_us-gaap_AccountsPayableTradeCurrent_2EDB06DCD7D5A131E9A0651ACF7502D5_terseLabel_en-US" xlink:label="lab_us-gaap_AccountsPayableTradeCurrent_2EDB06DCD7D5A131E9A0651ACF7502D5" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Trade accounts payable</link:label>
    <link:label id="lab_us-gaap_AccountsPayableTradeCurrent_2EDB06DCD7D5A131E9A0651ACF7502D5_label_en-US" xlink:label="lab_us-gaap_AccountsPayableTradeCurrent_2EDB06DCD7D5A131E9A0651ACF7502D5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accounts Payable, Trade, Current</link:label>
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    <link:label id="lab_us-gaap_EmployeeRelatedLiabilitiesCurrent_5F46B9E514EBBE5B8DD6651ACF756825_terseLabel_en-US" xlink:label="lab_us-gaap_EmployeeRelatedLiabilitiesCurrent_5F46B9E514EBBE5B8DD6651ACF756825" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accrued wages and benefits</link:label>
    <link:label id="lab_us-gaap_EmployeeRelatedLiabilitiesCurrent_5F46B9E514EBBE5B8DD6651ACF756825_label_en-US" xlink:label="lab_us-gaap_EmployeeRelatedLiabilitiesCurrent_5F46B9E514EBBE5B8DD6651ACF756825" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Employee-related Liabilities, Current</link:label>
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    <link:label id="lab_dxpe_ContractWithCustomerLiabilityCustomerAdvancesCurrent_7E5199F86B802D226DC4651ACF754BF7_terseLabel_en-US" xlink:label="lab_dxpe_ContractWithCustomerLiabilityCustomerAdvancesCurrent_7E5199F86B802D226DC4651ACF754BF7" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Customer advances</link:label>
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    <link:label id="lab_dxpe_ContractWithCustomerLiabilityCustomerAdvancesCurrent_7E5199F86B802D226DC4651ACF754BF7_documentation_en-US" xlink:label="lab_dxpe_ContractWithCustomerLiabilityCustomerAdvancesCurrent_7E5199F86B802D226DC4651ACF754BF7" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current.</link:label>
    <link:loc xlink:href="dxpe-20190630.xsd#dxpe_ContractWithCustomerLiabilityCustomerAdvancesCurrent" xlink:label="loc_dxpe_ContractWithCustomerLiabilityCustomerAdvancesCurrent_7E5199F86B802D226DC4651ACF754BF7" xlink:type="locator" />
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    <link:label id="lab_us-gaap_ContractWithCustomerLiabilityCurrent_43476D0706838AF29F18651ACF751276_verboseLabel_en-US" xlink:label="lab_us-gaap_ContractWithCustomerLiabilityCurrent_43476D0706838AF29F18651ACF751276" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Billings in excess of costs and estimated profits</link:label>
    <link:label id="lab_us-gaap_ContractWithCustomerLiabilityCurrent_43476D0706838AF29F18651ACF751276_label_en-US" xlink:label="lab_us-gaap_ContractWithCustomerLiabilityCurrent_43476D0706838AF29F18651ACF751276" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Contract with Customer, Liability, Current</link:label>
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    <link:label id="lab_us-gaap_OperatingLeaseLiabilityCurrent_57F75F93BB900ECFB9D5651ACF758F88_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeaseLiabilityCurrent_57F75F93BB900ECFB9D5651ACF758F88" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Short-term operating lease liabilities</link:label>
    <link:label id="lab_us-gaap_OperatingLeaseLiabilityCurrent_57F75F93BB900ECFB9D5651ACF758F88_label_en-US" xlink:label="lab_us-gaap_OperatingLeaseLiabilityCurrent_57F75F93BB900ECFB9D5651ACF758F88" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Operating Lease, Liability, Current</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingLeaseLiabilityCurrent" xlink:label="loc_us-gaap_OperatingLeaseLiabilityCurrent_57F75F93BB900ECFB9D5651ACF758F88" xlink:type="locator" />
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    <link:label id="lab_us-gaap_OtherLiabilitiesCurrent_5FAD7B548CBAFF216B2E651ACF752874_terseLabel_en-US" xlink:label="lab_us-gaap_OtherLiabilitiesCurrent_5FAD7B548CBAFF216B2E651ACF752874" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other current liabilities</link:label>
    <link:label id="lab_us-gaap_OtherLiabilitiesCurrent_5FAD7B548CBAFF216B2E651ACF752874_label_en-US" xlink:label="lab_us-gaap_OtherLiabilitiesCurrent_5FAD7B548CBAFF216B2E651ACF752874" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Liabilities, Current</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherLiabilitiesCurrent" xlink:label="loc_us-gaap_OtherLiabilitiesCurrent_5FAD7B548CBAFF216B2E651ACF752874" xlink:type="locator" />
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    <link:label id="lab_us-gaap_LiabilitiesCurrent_CF4B228C8DB8E2155E53651ACF75E82A_totalLabel_en-US" xlink:label="lab_us-gaap_LiabilitiesCurrent_CF4B228C8DB8E2155E53651ACF75E82A" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total current liabilities</link:label>
    <link:label id="lab_us-gaap_LiabilitiesCurrent_CF4B228C8DB8E2155E53651ACF75E82A_label_en-US" xlink:label="lab_us-gaap_LiabilitiesCurrent_CF4B228C8DB8E2155E53651ACF75E82A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Liabilities, Current</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LiabilitiesCurrent" xlink:label="loc_us-gaap_LiabilitiesCurrent_CF4B228C8DB8E2155E53651ACF75E82A" xlink:type="locator" />
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    <link:label id="lab_us-gaap_LongTermDebtNoncurrent_C546E05A0E4918DB82E9651ACF751391_verboseLabel_en-US" xlink:label="lab_us-gaap_LongTermDebtNoncurrent_C546E05A0E4918DB82E9651ACF751391" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Long-term debt, net of current maturities and unamortized debt issuance costs</link:label>
    <link:label id="lab_us-gaap_LongTermDebtNoncurrent_C546E05A0E4918DB82E9651ACF751391_label_en-US" xlink:label="lab_us-gaap_LongTermDebtNoncurrent_C546E05A0E4918DB82E9651ACF751391" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Long-term Debt, Excluding Current Maturities</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongTermDebtNoncurrent" xlink:label="loc_us-gaap_LongTermDebtNoncurrent_C546E05A0E4918DB82E9651ACF751391" xlink:type="locator" />
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    <link:label id="lab_us-gaap_OperatingLeaseLiabilityNoncurrent_FF5674419F8ADBC938FC651ACF75D524_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeaseLiabilityNoncurrent_FF5674419F8ADBC938FC651ACF75D524" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Long-term operating lease liabilities</link:label>
    <link:label id="lab_us-gaap_OperatingLeaseLiabilityNoncurrent_FF5674419F8ADBC938FC651ACF75D524_label_en-US" xlink:label="lab_us-gaap_OperatingLeaseLiabilityNoncurrent_FF5674419F8ADBC938FC651ACF75D524" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Operating Lease, Liability, Noncurrent</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingLeaseLiabilityNoncurrent" xlink:label="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_FF5674419F8ADBC938FC651ACF75D524" xlink:type="locator" />
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    <link:label id="lab_us-gaap_OtherLiabilitiesNoncurrent_10D29CE3FDF2CBEF0608651ACF75306D_terseLabel_en-US" xlink:label="lab_us-gaap_OtherLiabilitiesNoncurrent_10D29CE3FDF2CBEF0608651ACF75306D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other long-term liabilities</link:label>
    <link:label id="lab_us-gaap_OtherLiabilitiesNoncurrent_10D29CE3FDF2CBEF0608651ACF75306D_label_en-US" xlink:label="lab_us-gaap_OtherLiabilitiesNoncurrent_10D29CE3FDF2CBEF0608651ACF75306D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Liabilities, Noncurrent</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherLiabilitiesNoncurrent" xlink:label="loc_us-gaap_OtherLiabilitiesNoncurrent_10D29CE3FDF2CBEF0608651ACF75306D" xlink:type="locator" />
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    <link:label id="lab_us-gaap_DeferredIncomeTaxLiabilitiesNet_6BEB380A64B4C635B69D651ACF75D5F4_terseLabel_en-US" xlink:label="lab_us-gaap_DeferredIncomeTaxLiabilitiesNet_6BEB380A64B4C635B69D651ACF75D5F4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Deferred income taxes</link:label>
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    <link:label id="lab_us-gaap_LiabilitiesNoncurrent_CE5E066580A86B707BB7651ACF759471_label_en-US" xlink:label="lab_us-gaap_LiabilitiesNoncurrent_CE5E066580A86B707BB7651ACF759471" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Liabilities, Noncurrent</link:label>
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    <link:label id="lab_us-gaap_Liabilities_0A5240880A55CDCE7A13651ACF75AB2F_terseLabel_en-US" xlink:label="lab_us-gaap_Liabilities_0A5240880A55CDCE7A13651ACF75AB2F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total liabilities</link:label>
    <link:label id="lab_us-gaap_Liabilities_0A5240880A55CDCE7A13651ACF75AB2F_label_en-US" xlink:label="lab_us-gaap_Liabilities_0A5240880A55CDCE7A13651ACF75AB2F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Liabilities</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_Liabilities" xlink:label="loc_us-gaap_Liabilities_0A5240880A55CDCE7A13651ACF75AB2F" xlink:type="locator" />
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    <link:label id="lab_us-gaap_CommitmentsAndContingencies_702D00BAEFE32FCD5880651ACF75A006_terseLabel_en-US" xlink:label="lab_us-gaap_CommitmentsAndContingencies_702D00BAEFE32FCD5880651ACF75A006" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Commitments and contingencies (Note 11)</link:label>
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    <link:label id="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities_50C3210D858B678833C2651ACF55AED0_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities_50C3210D858B678833C2651ACF55AED0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net Cash Provided by (Used in) Investing Activities</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_50C3210D858B678833C2651ACF55AED0" xlink:type="locator" />
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    <link:label id="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_6168B00288ABFF8C5EF0651ACF55C290_terseLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_6168B00288ABFF8C5EF0651ACF55C290" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">CASH FLOWS FROM FINANCING ACTIVITIES:</link:label>
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_6168B00288ABFF8C5EF0651ACF55C290" xlink:type="locator" />
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    <link:label id="lab_us-gaap_PaymentForContingentConsiderationLiabilityFinancingActivities_BFB71F4F1F9E675233C9651ACF5567FB_negatedLabel_en-US" xlink:label="lab_us-gaap_PaymentForContingentConsiderationLiabilityFinancingActivities_BFB71F4F1F9E675233C9651ACF5567FB" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Payment for contingent consideration liability</link:label>
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