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ACCOUNTS RECEIVABLE, NET-THIRD PARTIES (Schedule of Accounts Receivable) (Details)
Sep. 30, 2020
CNY (¥)
Sep. 30, 2020
USD ($)
Dec. 31, 2019
CNY (¥)
Sep. 30, 2019
CNY (¥)
Dec. 31, 2018
CNY (¥)
ACCOUNTS RECEIVABLE, NET-THIRD PARTIES [Line Items]          
Accounts receivables ¥ 5,472,967,286   ¥ 5,584,548,167    
Allowance for credit losses (325,929,467)   (318,197,517) ¥ (254,565,101) ¥ (256,605,518)
Accounts receivable, net 5,147,037,819 $ 758,076,738 5,266,350,650    
Amount of accounts receivable pledged as collateral for borrowings ¥ 851,038,544   ¥ 1,200,492,957