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Property, Plant and Equipment (Details) - USD ($)
Jun. 30, 2020
Dec. 31, 2019
Property, Plant and Equipment [Abstract]    
Permit of land use $ 397,864 $ 403,755
Building 9,239,010 9,375,817
Plant, machinery and equipment 26,757,799 26,309,262
Motor vehicle 303,835 308,334
Office equipment 216,264 217,058
Total 36,914,772 36,614,226
Less: accumulated depreciation (21,283,119) (20,300,399)
Property, Plant and Equipment, net $ 15,631,653 $ 16,313,827