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Advances to Suppliers (Tables)
 6 Months Ended
Sep. 30, 2020
Advances to Suppliers [Abstract]  
Schedule of advance to suppliers
   September 30,
2020		   March 31,
2020		 
Advance to suppliers  $2,838,746   $2,198,863 
Less: allowance for nonrefundable advances   (909,473)   (1,024,063)
Advance to suppliers, net  $1,929,273   $1,174,800