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List of Specific Industries
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North American Industry Classification System (NAICS) codes for this industry
[ 238220 ] = Plumbing, Heating, and Air-Conditioning Contractors – Water system balancing and testing contractors
Industry Description
Potable (drinking) water and DWV (Drain Waste Vent) companies that provide design, specification, and installation services for home construction.
(11-29-2013)
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