Variant of North American Industry Classification System (NAICS) 2022 Version 1.0 for Industrial production (based on the 2008 International Recommendations for Industrial Statistics)

• 1 - Industrial production
• 31-33 - Manufacturing
• 331 - Primary metal manufacturing
• 3315 - Foundries

33151 - Ferrous metal foundries

This industry comprises establishments primarily engaged in pouring molten iron or steel into moulds to produce castings. These establishments generally operate on a job order basis, manufacturing castings for sale or transfer to other establishments.