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4. PROPERTY, PLANT AND EQUIPMENT, NET (Details Narrative) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
Property not be able to obtain property ownership certificates | $ 19,302,600 | $ 19,894,947
Depreciation and amortization expense | 15,987,860 | 14,060,927
Direct Labor and Factory Overhead |  |
Depreciation and amortization expense | 5,512,920 | 10,796,085
Administrative Expenses |  |
Depreciation and amortization expense | 815,605 | 848,345
Cost of Net Revenue |  |
Depreciation and amortization expense | $ 9,653,960 | $ 2,347,153

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