XML 41 R31.htm IDEA: XBRL DOCUMENT v3.20.2
Property, Plant and Equipment (Details) - USD ($)
Sep. 30, 2020
Dec. 31, 2019
Property, Plant and Equipment [Abstract]    
Permit of land use $ 413,603 $ 403,755
Building 9,604,495 9,375,817
Plant, machinery and equipment 28,077,699 26,309,262
Motor vehicle 315,854 308,334
Office equipment 224,819 217,058
Total 38,636,470 36,614,226
Less: accumulated depreciation (22,799,580) (20,300,399)
Property, Plant and Equipment, net $ 15,836,890 $ 16,313,827