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Property, Plant and Equipment (Tables)
9 Months Ended
Sep. 30, 2022
Property, Plant and Equipment [Abstract]  
Schedule of property, plant and equipment
   September 30,   December 31, 
   2022   2021 
Permit of land use  $396,726   $441,783 
Building   9,212,594    10,258,885 
Plant, machinery and equipment   27,264,495    30,122,235 
Motor vehicle   435,485    337,375 
Office equipment   302,966    278,892 
Total   37,612,266    41,439,170 
Less: accumulated depreciation   (27,178,761)   (28,158,611)
Property, plant and equipment, net  $10,433,505   $13,280,559 

 

Schedule of estimated useful lives of the assets
Asset   Life - years  
Permit of land use   40 - 70 
Building   20 - 49 
Plant, machinery and equipment   5 - 10 
Motor vehicle   5 - 10 
Office equipment   3-5