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INVENTORIES (Tables)
12 Months Ended
Dec. 31, 2020
INVENTORIES  
Schedule of Inventories

As of December 31, 

2019

2020

    

RMB

    

RMB

Raw materials

 

1,350,518,751

 

2,362,396,325

Work-in-progress

 

792,495,823

 

1,059,864,518

Finished goods

 

3,675,774,411

 

4,954,674,986

Total

 

5,818,788,985

 

8,376,935,829