NAICS 4217: Hardware, and plumbing and heating equipment and supplies wholesalers

This NAICS Industry Group includes establishments classified in the following NAICS Industries: 42171, Hardware wholesalers; 42172, Plumbing and heating equipment and supplies (hydronics) wholesalers; 42173, Warm air heating and air-conditioning equipment and supplies; and 42174, Refrigeration equipment and supplies wholesalers,

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