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INVENTORIES (Tables)
3 Months Ended
Mar. 31, 2022
INVENTORIES  
Schedule of inventories, net of reserves

    

2022

    

2021

Chassis

$

6,664

$

5,753

Raw materials

 

62,628

 

59,651

Work in process

 

38,398

 

33,994

Finished goods

 

16,658

 

15,510

$

124,348

$

114,908