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Restricted cash	12 Months Ended
	Dec. 31, 2018
Restricted cash
Restricted cash	4. Restricted cash To meet the requirements of specific business operations, primarily including secured deposits held in designated bank accounts for issuance of bank acceptance and letter of guarantee, the Group held restricted cash of RMB4,110,210 and RMB3,239,613 as of December 31, 2017 and 2018, respectively.

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- Definition

The entire disclosure for restricted cash.

+ References

No definition available.

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No definition available.

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