Inventories (Tables)
 12 Months Ended
Dec. 31, 2017
Inventories  
Schedule of inventory

 

 

As of December 31,

 

As of December 31,

 

 

 

2016

 

2017

 

 

 

RMB

 

RMB

 

Raw materials

 
941,131

 
1,416,270

 

Work-in-progress

 
94,164

 
203,676

 

Finished goods

 
1,425,193

 
1,861,170

 

 

 

 

 

 

 

Total

 
2,460,488

 
3,481,116