Warm Air Heating and Air?Conditioning Equipment and Supplies Merchant Wholesalers

Plumbing, Heating, and Air?Conditioning Contractors

Power Boiler and Heat Exchanger Manufacturing

Fluid Power Valve and Hose Fitting Manufacturing

Plumbing Fixture Fitting and Trim Manufacturing

Industrial and Commercial Fan and Blower and Air Purification Equipment Manufacturing

Heating Equipment (except Warm Air Furnaces) Manufacturing

Air?Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing

Welding and Soldering Equipment Manufacturing

Industrial Process Furnace and Oven Manufacturing

Fluid Power Cylinder and Actuator Manufacturing

Power, Distribution and Specialty Transformer Manufacturing

Switchgear and Switchboard Apparatus Manufacturing

Relay and Industrial Control Manufacturing

Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers

Household Appliances, Electric Housewares, and Consumer Electronics Merchant Wholesalers

Other Electronic Parts and Equipment Merchant Wholesalers

Plumbing and Heating Equipment and Supplies (Hydronics) Merchant Wholesalers

Refrigeration Equipment and Supplies Merchant Wholesalers

Construction and Mining (except Oil Well) Machinery and Equipment Merchant Wholesalers

Industrial Machinery and Equipment Merchant Wholesalers

Service Establishment Equipment and Supplies Merchant Wholesalers

Transportation Equipment and Supplies (except Motor Vehicle) Merchant Wholesalers

Printing and Writing Paper Merchant Wholesalers

Other Chemical and Allied Products Merchant Wholesalers

Code	Description	Primary
423730	Warm Air Heating and Air?Conditioning Equipment and Supplies Merchant Wholesalers
221330	Steam and Air?Conditioning Supply
238220	Plumbing, Heating, and Air?Conditioning Contractors

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NAICS Codes