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Other Expense (Tables)
12 Months Ended
Dec. 31, 2018
Other Expense  
Schedule of other expense
   For the years ended December 31, 
   2018   2017   2016 
Exchange loss  $-  $48,430   $      - 
Loss on disposal of equipment   232,171         - 
Others   3,688    3,937    - 
Total other expense  $235,859   $52,367   $-