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INVENTORIES
9 Months Ended
Sep. 30, 2022
INVENTORIES  
INVENTORIES

5.          INVENTORIES

Inventory costs include materials, labor and factory overhead. Inventories are stated at the lower of cost or net realizable value, determined on a moving average unit cost basis. Appropriate consideration is given to obsolescence, valuation and other factors in determining net realizable value. Revisions of these estimates could result in the need for adjustments. Inventories, net of reserves, at September 30, 2022 and December 31, 2021 consisted of the following:

    

2022

    

2021

Chassis

$

14,974

$

5,753

Raw materials

 

70,531

 

59,651

Work in process

 

44,334

 

33,994

Finished goods

 

14,543

 

15,510

$

144,382

$

114,908