Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding, Powder Metallurgy Part Manufacturing, All Other Miscellaneous Fabricated Metal Product Manufacturing, Welding and Soldering Equipment Manufacturing, Metal Service Centers and Other Metal Merchant Wholesalers

Plumbing and Heating Equipment and Supplies (Hydronics) Merchant Wholesalers

Plumbing and Heating Equipment and Supplies (Hydronics) Merchant Wholesalers

Brick, Stone, and Related Construction Material Merchant Wholesalers, Metal Service Centers and Other Metal Merchant Wholesalers, Hardware Merchant Wholesalers, Plumbing and Heating Equipment and Supplies (Hydronics) Merchant Wholesalers, Refrigeration Equipment and Supplies Merchant Wholesalers

Water Supply and Irrigation Systems, Water and Sewer Line and Related Structures Construction, Bottled Water Manufacturing, Oil and Gas Field Machinery and Equipment Manufacturing, Conveyor and Conveying Equipment Manufacturing

Other Electric Power Generation, Aircraft Manufacturing, Metal Service Centers and Other Metal Merchant Wholesalers, Other Electronic Parts and Equipment Merchant Wholesalers, Plumbing and Heating Equipment and Supplies (Hydronics) Merchant Wholesalers

Louvers, registers, grilles, diffusers, fans, damper, firedampers, firesmoke dampers, smokedampers, ventlator, exhausters, ductwork, soundattenuators, vibrationisolation, seismicrestrants, flue, vavbox, airtermials, wallheater, ductheaters

Plumbing and Heating Equipment and Supplies (Hydronics) Merchant Wholesalers, Warm Air Heating and Air-Conditioning Equipment and Supplies Merchant Wholesalers, Refrigeration Equipment and Supplies Merchant Wholesalers

Automobile and Other Motor Vehicle Merchant Wholesalers, Motor Vehicle Supplies and New Parts Merchant Wholesalers, Tire and Tube Merchant Wholesalers, Furniture Merchant Wholesalers, Home Furnishing Merchant Wholesalers

Plumbing

heat exchangers, steam condensors, backflow preventers, plumbing fixtures, carbon steel pipe, copper pipe, copper tubing, copper fittings, malleable fittings, fittings, tubing, powered valves, nonpowered valves, packing, gasket, storage tanks, solenoid va

Automobile and Other Motor Vehicle Merchant Wholesalers, Motor Vehicle Supplies and New Parts Merchant Wholesalers, Tire and Tube Merchant Wholesalers, Motor Vehicle Parts (Used) Merchant Wholesalers, Furniture Merchant Wholesalers

Water Supply and Irrigation Systems, Steam and Air-Conditioning Supply, Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers, Plumbing and Heating Equipment and Supplies (Hydronics) Merchant Wholesalers, Warm Air Heating and Air-Conditioning Equipment and Supplies Merchant Wholesalers

Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers, Hardware Merchant Wholesalers, Plumbing and Heating Equipment and Supplies (Hydronics) Merchant Wholesalers

Other Building Equipment Contractors, All Other Specialty Trade Contractors, Electronic Computer Manufacturing, Computer Storage Device Manufacturing, Computer Terminal Manufacturing

Ophthalmic Goods Merchant Wholesalers, Plumbing and Heating Equipment and Supplies (Hydronics) Merchant Wholesalers, Industrial Supplies Merchant Wholesalers, Sporting and Recreational Goods and Supplies Merchant Wholesalers, Other Miscellaneous Durable Goods Merchant Wholesalers

Commercial and Institutional Building Construction, Painting and Wall Covering Contractors, Flooring Contractors, Paper (except Newsprint) Mills, Sanitary Paper Product Manufacturing

Steam and Air-Conditioning Supply, Water and Sewer Line and Related Structures Construction, Power and Communication Line and Related Structures Construction, Plumbing, Heating, and Air-Conditioning Contractors, Other Building Equipment Contractors

Commercial and Institutional Building Construction, Masonry Contractors, Drywall and Insulation Contractors, Tile and Terrazzo Contractors, Finish Carpentry Contractors

Other Electric Power Generation, Power and Communication Line and Related Structures Construction, Roofing Contractors, Plumbing, Heating, and Air-Conditioning Contractors, Heating Equipment (except Warm Air Furnaces) Manufacturing