Variant of North American Industry Classification System (NAICS) 2022 Version 1.0 for Energy sector

• Non E - Industries not included in the energy sector
• 31-33e - Manufacturing, non E
• 331 - Primary metal manufacturing
• 3312 - Steel product manufacturing from purchased steel

33121 - Iron and steel pipes and tubes manufacturing from purchased steel

This industry comprises establishments primarily engaged in the production of welded or seamless iron and steel pipes and tubes, and heavy, rivetted steel pipes, from purchased steel.