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Summary of Significant Accounting Policies (Details)	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Accounting Policies [Abstract]
Exchange rate at balance sheets date	6.9762	6.8755
Average exchange rate for each year	6.8985	6.6090	6.7553

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Average contractual rate at which a foreign currency can be purchased or sold.

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Contractual rate at which a foreign currency can be purchased or sold.

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