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Property, Plant and Equipment (Details) - USD ($)
Sep. 30, 2019
Dec. 31, 2018
Property, Plant and Equipment [Abstract]    
Permit of land use $ 398,235 $ 409,612
Building 9,247,632 9,511,832
Plant, machinery and equipment 25,909,977 26,576,409
Motor vehicle 304,118 312,807
Office equipment 204,115 198,292
Total 36,064,077 37,008,952
Less: accumulated depreciation (19,366,821) (17,714,573)
Property, Plant and Equipment, net $ 16,697,256 $ 19,294,379