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INVENTORIES (Details) - CNY (¥)
Dec. 31, 2021
Dec. 31, 2020
INVENTORIES    
Raw materials ¥ 4,659,000 ¥ 6,281,000
Work in progress 244,000 1,040,000
Finished goods 26,686,000 44,880,000
Inventories ¥ 31,589,000 ¥ 52,201,000