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RELATED PARTY TRANSACTIONS AND BALANCES - Sales to related party (Details) - CNY (¥)
6 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Related Party Transaction [Line Items]    
Total revenues from related party ¥ 0 ¥ 85,657
Urumqi Yikeli Automatic Control Equipment Co., Ltd. [Member]    
Related Party Transaction [Line Items]    
Total revenues from related party ¥ 0 ¥ 85,657