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INVENTORIES (Tables)
12 Months Ended
Dec. 31, 2020
INVENTORIES  
Schedule of components of inventories

December 31, 

    

2020

    

2019

Parts and raw materials

$

141,337

$

134,816

Work in process

 

13,702

 

10,269

Finished goods

 

66,307

 

84,934

Total

$

221,346

$

230,019