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
- 333 - Machinery manufacturing
- 3334 - Ventilation, heating, air-conditioning and commercial refrigeration equipment manufacturing
- 33341 - Ventilation, heating, air-conditioning and commercial refrigeration equipment manufacturing
- 333413 - Industrial and commercial fan and blower and air purification equipment manufacturingUS
- 333416 - Heating equipment and commercial refrigeration equipment manufacturingCAN
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