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CRITICAL ACCOUNTING ESTIMATES AND JUDGMENTS (Details) - CNY (¥)
¥ in Thousands
6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Dec. 31, 2021
CRITICAL ACCOUNTING ESTIMATES AND JUDGMENTS      
Property, plant and equipment ¥ 1,129   ¥ 1,250
Right-of-use assets 37,952   44,288
Bad debts 13,536 ¥ 49,827  
Current inventories ¥ 37,040   ¥ 31,589