Naics code Naics crossreference
423510 Merchant wholesale distribution of gold, silver, and platinum--are classified in Industry 423940, Jewelry, Watch, Precious Stone, and Precious Metal Merchant Wholesalers
423510 Merchant wholesale distribution of automotive, industrial, and other recyclable metal scrap--are classified in Industry 423930, Recyclable Material Merchant Wholesalers
423510 Merchant wholesale distribution of insulated wire--are classified in Industry 423610, Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers.
423520 Merchant wholesale distribution of nonmetallic minerals used in construction, such as sand and gravel--are classified in Industry 423320, Brick, Stone, and Related Construction Material Merchant Wholesalers
423520 Merchant wholesale distribution of industrial sand--are classified in Industry 423840, Industrial Supplies Merchant Wholesalers
423520 Merchant wholesale distribution of crude petroleum--are classified in Industry Group 4247, Petroleum and Petroleum Products Merchant Wholesalers
423520 Merchant wholesale distribution of precious and semiprecious stones and metals--are classified in Industry 423940, Jewelry, Watch, Precious Stone, and Precious Metal Merchant Wholesalers
423520 Quarrying, dredging, and/or beneficiating construction sand and gravel--are classified in U.S. Industry 212321, Construction Sand and Gravel Mining.
423620 Merchant wholesale distribution of gas and electric water heaters and heating stoves (i.e., noncooking)--are classified in Industry 423720, Plumbing and Heating Equipment and Supplies (Hydronics) Merchant Wholesalers
423620 Merchant wholesale distribution of warm air heating and air-conditioning equipment (except room units)--are classified in Industry 423730, Warm Air Heating and Air-Conditioning Equipment and Supplies Merchant Wholesalers