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INVENTORIES (Tables)
9 Months Ended
Sep. 30, 2020
INVENTORIES  
Schedule of components of inventories

September 30, 

December 31, 

    

2020

    

2019

Parts and raw materials

$

155,217

$

134,816

Work in process

 

17,147

 

10,269

Finished goods

 

85,010

 

84,934

Total

$

257,374

$

230,019