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Property, Plant and Equipment (Details) - Schedule of depreciation is computed on straight-line basis over estimated useful lives of assets - USD ($)
Jun. 30, 2021
Dec. 31, 2020
Schedule of depreciation is computed on straight-line basis over estimated useful lives of assets [Abstract]    
Permit of land use $ 436,011 $ 431,681
Building 10,124,855 10,024,303
Plant, machinery and equipment 29,306,831 29,018,708
Motor vehicle 332,967 329,660
Office equipment 274,687 259,175
Total 40,475,351 40,063,527
Less: accumulated depreciation (26,129,229) (24,499,327)
Property, plant and equipment, net $ 14,346,122 $ 15,564,200