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3. INVENTORY
6 Months Ended
Jun. 30, 2020
Inventory Disclosure [Abstract]  
INVENTORY
3. INVENTORY

 

Inventory consists of the following:

 

    June 30,     December 31,  
    2020     2019  
Finished goods   $ 313,003     $ 716,478  
Work in process     703,227       303,594  
Raw materials     1,273,465       835,232  
Inventory allowance     (11,424 )     (11,424 )
Total inventory   $ 2,278,271     $ 1,843,880