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INVENTORIES (Tables)
6 Months Ended
Jun. 30, 2021
INVENTORIES  
Schedule of components of inventories

June 30, 

December 31, 

    

2021

    

2020

Parts and raw materials

$

215,203

$

141,337

Work in process

 

23,051

 

13,702

Finished goods

 

58,485

 

66,307

Total

$

296,739

$

221,346