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Bank Loans (Tables)
3 Months Ended
Mar. 31, 2022
Debt Disclosure [Abstract]  
Schedule of bank loans
   March 31,
2022
   December 31,
2021
 
Mortgage loan  $5,406,332   $5,493,475 
Line of revolving loan   4,877,322    4,913,557 
           
Total bank loans  $10,283,654   $10,407,032 
           
Reclassifying as:          
Current portion  $5,497,669   $5,584,788 
Long-term portion (more than 12 months)   4,785,985    4,822,244 
           
Total bank loans  $10,283,654   $10,407,032