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Property and Equipment, Net (Tables)
6 Months Ended
Jun. 30, 2019
Property, Plant and Equipment [Abstract]  
Summary of property and equipment
   June 30,
2019
   December 31,
2018
 
Plant and machinery  $1,779,143   $1,770,626 
Automobiles   139,668    139,380 
Office and computer equipment   30,566    37,005 
Total property and equipment   1,949,377    1,947,011 
Less: Accumulated depreciation   (1,095,873)   (685,518)
Property and equipment, net  $853,504   $1,261,493