NAICS for "plumber"
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238220 - Plumbing, Heating, and Air-Conditioning Contractors
This industry comprises establishments primarily engaged in installing and servicing plumbing, heating, and air-conditioning equipment. Contractors in this industry may provide both parts and labor when performing work. The work performed may include new work, additions, alterations, maintenance, and repairs. …Examples: Plumbers -
423720 - Plumbing and Heating Equipment and Supplies (Hydronics) Merchant Wholesalers
This industry comprises establishments primarily engaged in the merchant wholesale distribution of plumbing equipment, hydronic heating equipment, household-type water heaters, and/or supplies. …Examples: Brass goods, plumbers', merchant wholesalers, Fittings and valves, plumbers', merchant wholesalers, Pipe
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325520 - Adhesive Manufacturing
This industry comprises establishments primarily engaged in manufacturing adhesives, glues, and caulking compounds. …Examples: Plumbers' putty manufacturing
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332216 - Saw Blade and Handtool Manufacturing
This U.S. industry comprises establishments primarily engaged in (1) manufacturing saw blades, all types (including those for power sawing machines) and/or (2) manufacturing nonpowered handtools and edge tools. …Examples: Plumbers' handtools, nonpowered, manufacturing
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423710 - Hardware Merchant Wholesalers
This industry comprises establishments primarily engaged in the merchant wholesale distribution of hardware, knives, or handtools. …Examples: Plumbers' tools and equipment merchant wholesalers
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611513 - Apprenticeship Training
This U.S. industry comprises establishments primarily engaged in offering apprenticeship training programs. These programs involve applied training as well as course work. …Examples: Plumbers' apprenticeship training
