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PURCHASE ADVANCES, NET (Details) | Dec. 31, 2019 USD ($) | Dec. 31, 2019 CNY (¥) | Jun. 30, 2019 CNY (¥)
--- | --- | --- | ---
Purchase Advances [Line Items] |  |  |
Total purchase advances, net | $ 26,862 | ¥ 187,174 | ¥ 1,343,576
Third Party [Member] |  |  |
Purchase Advances [Line Items] |  |  |
Prepayment for others | 69,342 | 483,174 | 1,592,076
Allowance for doubtful accounts | (42,480) | (296,000) | (248,500)
Total purchase advances, net | $ 26,862 | ¥ 187,174 | ¥ 1,343,576

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