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SEGMENT INFORMATION AND REVENUE ANALYSIS (Details 2) - USD ($)
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Total revenues $ 30,191,069 $ 23,834,129 $ 18,531,178
Domestic PRC      
Total revenues 30,191,069 23,834,129 18,407,891
Export      
Total revenues $ 123,287