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Inventories, net (Tables)
9 Months Ended
Sep. 30, 2019
Inventories, net  
Schedule of Inventories, net
                 
 
As of
 
 
December 31,
2018
 
 
September 30,
2019
 
 
RMB
 
 
RMB
 
Products
   
44,678,983
     
49,182,983
 
Packing materials and others
   
219,961
     
177,520
 
 
 
 
 
 
 
 
 
 
Inventories
   
44,898,944
     
49,360,503
 
Inventory valuation allowance
   
(868,860
)    
(1,095,054
)
 
 
 
 
 
 
 
 
 
Inventories, net
   
44,030,084
     
48,265,449