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Property, Plant and Equipment (Tables)
 6 Months Ended
Jun. 30, 2023
Property, Plant and Equipment [Abstract]  
Schedule of property, plant and equipment Property, plant and equipment consisted of the following:
   June 30,   December 31, 
   2023   2022 
Permit of land use  $389,808   $404,427 
Building   9,051,949    9,391,433 
Plant, machinery and equipment   26,760,223    27,780,585 
Motor vehicle   297,683    438,138 
Office equipment   380,460    308,847 
Total   36,880,123    38,323,430 
Less: accumulated depreciation   (28,539,283)   (28,350,365)
Property, plant and equipment, net  $8,340,840   $9,973,065 
Schedule of estimated useful lives of the assets Depreciation is computed on a straight-line basis over the estimated useful lives of the assets as follows:
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