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Inventory (Tables)
9 Months Ended
Sep. 30, 2021
Inventory Disclosure [Abstract]  
Schedule of inventory
    September 30,
2021
    December 31,
2020
 
    (Unaudited)        
Finished goods   $ 101,818     $ 100,967  
Work-in-process     56,329       22,038  
Raw materials     88,140       61,718  
Allowance for inventory valuation and obsolescence loss     (186,280 )     (184,723 )
Inventory, net   $ 60,007     $
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