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Summary of Significant Accounting Policies (Details 4) | Sep. 30, 2017 | Mar. 31, 2017 | Sep. 30, 2016
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RMB:US |  |  |
Period/year end exchange rate | 6.6574 | 6.8905 | 6.6679
Period/annual average exchange rate | 6.7672 | 6.7291 | 6.5984
HKD:US |  |  |
Period/year end exchange rate | 7.7705 | 7.7705 | 7.7547
Period/annual average exchange rate | 7.7588 | 7.7588 | 7.7582

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- Definition Foreign exchange rate used to translate amounts denominated in functional currency to reporting currency. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section S99 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6897108&loc=SL6897125-166521 + Details
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