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Bank Loans (Details) - Schedule of bank loans - USD ($)
Jun. 30, 2021
Dec. 31, 2020
Schedule of bank loans [Abstract]    
Mortgage loan $ 4,987,904 $ 5,064,142
Line of revolving loan 6,302,884 6,322,417
Total bank loans 11,290,788 11,386,559
Reclassifying as:    
Current portion 6,426,211 6,446,139
Long-term portion (more than 12 months) 4,864,577 4,940,420
Total bank loans $ 11,290,788 $ 11,386,559