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INVENTORIES (Tables)
12 Months Ended
Dec. 31, 2019
INVENTORIES  
Schedule of Inventories

As of December 31, 

2018

2019

    

RMB

    

RMB

Raw materials

 

1,337,270,185

 

1,350,518,751

Work-in-progress

 

1,553,346,553

 

792,495,823

Finished goods

 

2,852,711,200

 

3,675,774,411

Total

 

5,743,327,938

 

5,818,788,985