North American Industry Classification System (NAICS) 1997
- 31-33 - Manufacturing
- 336 - Transportation Equipment Manufacturing
- 3361 - Motor Vehicle Manufacturing
- 33611 - Automobile and Light-Duty Motor Vehicle Manufacturing
- 336110 - Automobile and Light-Duty Motor Vehicle Manufacturing
- 33612 - Heavy-Duty Truck Manufacturing
- 336120 - Heavy-Duty Truck Manufacturing
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