This industry comprises establishments primarily engaged in the merchant wholesale distribution of products of the primary metals industries. Service centers maintain inventory and may perform functions, such as sawing, shearing, bending, leveling, cleaning, or edging, on a custom basis as part of sales transactions. Merchant wholesale distribution of gold, silver, and platinum--are classified in Industry 423940, Jewelry, Watch, Precious Stone, and Precious Metal Merchant Wholesalers; Merchant wholesale distribution of automotive, industrial, and other recyclable metal scrap--are classified in Industry 423930, Recyclable Material Merchant Wholesalers; and Merchant wholesale distribution of insulated wire--are classified in Industry 423610, Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers.