| 2007 NAICS | 2012 NAICS | 2017 NAICS | Corresponding Index Entries | |||
| 423510 | 423510 | 423510 | Aluminum and aluminum alloy primary forms merchant wholesalers | |||
| 423510 | 423510 | 423510 | Aluminum foil, plate, sheet, coil, and roll products merchant wholesalers | |||
| 423510 | 423510 | 423510 | Bars, metal (except precious), merchant wholesalers | |||
| 423510 | 423510 | 423510 | Bearing piles, metal, merchant wholesalers | |||
| 423510 | 423510 | 423510 | Billets, metal, merchant wholesalers | |||
| 423510 | 423510 | 423510 | Black plate merchant wholesalers | |||
| 423510 | 423510 | 423510 | Blooms, metal, merchant wholesalers | |||
| 423510 | 423510 | 423510 | Cable, wire (except insulated), merchant wholesalers | |||
| 423510 | 423510 | 423510 | Carbon and alloy steel primary forms merchant wholesalers | |||
| 423510 | 423510 | 423510 | Cast iron pipe merchant wholesalers | |||
| 423510 | 423510 | 423510 | Castings, metal, merchant wholesalers | |||
| 423510 | 423510 | 423510 | Concrete reinforcing bars merchant wholesalers | |||
| 423510 | 423510 | 423510 | Copper and copper alloy primary forms merchant wholesalers | |||
| 423510 | 423510 | 423510 | Ferroalloys merchant wholesalers | |||
| 423510 | 423510 | 423510 | Ferrous metals merchant wholesalers | |||
| 423510 | 423510 | 423510 | Forgings, metal, merchant wholesalers | |||
| 423510 | 423510 | 423510 | Foundry products merchant wholesalers | |||
| 423510 | 423510 | 423510 | Galvanized iron and steel products merchant wholesalers | |||
| 423510 | 423510 | 423510 | Grinding balls merchant wholesalers | |||
| 423510 | 423510 | 423510 | Ingots (except precious) merchant wholesalers | |||
| 423510 | 423510 | 423510 | Lead primary forms merchant wholesalers | |||
| 423510 | 423510 | 423510 | Metal pipe merchant wholesalers | |||
| 423510 | 423510 | 423510 | Metal products (e.g., bars, ingots, plates, rods, shapes, sheets) merchant wholesalers | |||
| 423510 | 423510 | 423510 | Metals sales offices | |||
| 423510 | 423510 | 423510 | Metals service centers | |||
| 423510 | 423510 | 423510 | Metals, ferrous and nonferrous, merchant wholesalers | |||
| 423510 | 423510 | 423510 | Nails merchant wholesalers | |||
| 423510 | 423510 | 423510 | Nickel and nickel alloy primary forms merchant wholesalers | |||
| 423510 | 423510 | 423510 | Nonferrous metals (except precious) merchant wholesalers | |||
| 423510 | 423510 | 423510 | Noninsulated wire merchant wholesalers | |||
| 423510 | 423510 | 423510 | Pig iron merchant wholesalers | |||
| 423510 | 423510 | 423510 | Pilings, metal, merchant wholesalers | |||
| 423510 | 423510 | 423510 | Pipe, metal, merchant wholesalers | |||
| 423510 | 423510 | 423510 | Poles, metal, merchant wholesalers | |||
| 423510 | 423510 | 423510 | Posts, metal, merchant wholesalers | |||
| 423510 | 423510 | 423510 | Rails and accessories, metal, merchant wholesalers | |||
| 423510 | 423510 | 423510 | Reinforcement mesh and wire merchant wholesalers | |||
| 423510 | 423510 | 423510 | Rods, metal (except precious), merchant wholesalers | |||
| 423510 | 423510 | 423510 | Ropes, wire (except insulated), merchant wholesalers | |||
| 423510 | 423510 | 423510 | Semi-finished metal products merchant wholesalers | |||
| 423510 | 423510 | 423510 | Sewer pipe, metal, merchant wholesalers | |||
| 423510 | 423510 | 423510 | Spikes, metal, merchant wholesalers | |||
| 423510 | 423510 | 423510 | Springs, steel, merchant wholesalers | |||
| 423510 | 423510 | 423510 | Stainless steel merchant wholesalers | |||
| 423510 | 423510 | 423510 | Steel merchant wholesalers | |||
| 423510 | 423510 | 423510 | Steel wire cloth (screening) merchant wholesalers | |||
| 423510 | 423510 | 423510 | Steel wool merchant wholesalers | |||
| 423510 | 423510 | 423510 | Storage tanks, metal, merchant wholesalers | |||
| 423510 | 423510 | 423510 | Strips, metal (except precious), merchant wholesalers | |||
| 423510 | 423510 | 423510 | Structural assemblies, metal, merchant wholesalers | |||
| 423510 | 423510 | 423510 | Tanks, storage metal, merchant wholesalers | |||
| 423510 | 423510 | 423510 | Terneplate merchant wholesalers | |||
| 423510 | 423510 | 423510 | Tin and tin alloy primary forms merchant wholesalers | |||
| 423510 | 423510 | 423510 | Tin plate merchant wholesalers | |||
| 423510 | 423510 | 423510 | Tubing, metal, merchant wholesalers | |||
| 423510 | 423510 | 423510 | Wire (except insulated) merchant wholesalers | |||
| 423510 | 423510 | 423510 | Wire and cable (except electrical) merchant wholesalers | |||
| 423510 | 423510 | 423510 | Wire rope (except insulated) merchant wholesalers | |||
| 423510 | 423510 | 423510 | Wire screening merchant wholesalers | |||
| 423510 | 423510 | 423510 | Zinc and zinc alloy primary forms merchant wholesalers |