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Trade and Bills Payable (Tables)
3 Months Ended
Mar. 31, 2022
Trade and Bills Payable [Abstract]  
Schedule of trade and bills payable
   December 31,   March 31, 
   2021   2022 
Trade accounts payable  $40,352,638   $46,550,602 
Bills payable          
– Bank acceptance bills   25,023,574    32,719,399 
           
   $65,376,212   $79,270,001