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INVENTORIES (Tables)
3 Months Ended
Mar. 31, 2021
INVENTORIES  
Schedule of inventories, net of reserves

    

2021

    

2020

Chassis

$

5,767

$

6,859

Raw materials

 

38,298

 

36,161

Work in process

 

27,167

 

16,282

Finished goods

 

13,708

 

24,637

$

84,940

$

83,939