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3. INVENTORY (Tables)
9 Months Ended
Sep. 30, 2019
Inventory Disclosure [Abstract]  
Schedule of inventory
   September 30,   December 31, 
   2019   2018 
Work in process  $783,314   $443,701 
Raw materials   924,029    698,689 
Inventory allowance   (11,424)   (11,424)
Total inventory  $1,695,919   $1,130,966