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INVENTORIES (Tables)
12 Months Ended
Dec. 31, 2018
Inventory Disclosure [Abstract]  
Schedule of inventories

At December 31, 2018 and 2017, inventories consist of: 

 

  2018   2017
Raw materials, parts and supplies $              2,026,839   $           541,816
Work-in-progress 483,706   685,410
Finished products 750,581   765,639
Total inventories $              3,261,126   $        1,992,865