Variant of North American Industry Classification System (NAICS) 2022 Version 1.0 for Energy sector
- 3353 - Electrical equipment manufacturing
- 33531 - Electrical equipment manufacturing
- 335311 - Power, distribution and specialty transformers manufacturingUS
- 335312 - Motor and generator manufacturingUS
- 335315 - Switchgear and switchboard, and relay and industrial control apparatus manufacturingCAN
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