| 331110 — Iron and Steel Mills and Ferroalloy Manufacturing | Not reported |
| 331221 — Rolled Steel Shape Manufacturing | Not reported |
| 331523 — Nonferrous Metal Die-Casting Foundries | Not reported |
| 332112 — Nonferrous Forging | Not reported |
| 332312 — Fabricated Structural Metal Manufacturing | Not reported |
| 332323 — Ornamental and Architectural Metal Work Manufacturing | Not reported |
| 332420 — Metal Tank (Heavy Gauge) Manufacturing | Not reported |
| 332613 — Spring Manufacturing | Not reported |
| 332618 — Other Fabricated Wire Product Manufacturing | Not reported |
| 332710 — Machine Shops | Not reported |
| 332721 — Precision Turned Product Manufacturing | Not reported |
| 332722 — Bolt, Nut, Screw, Rivet, and Washer Manufacturing | Not reported |
| 332811 — Metal Heat Treating | Not reported |
| 332813 — Electroplating, Plating, Polishing, Anodizing, and Coloring | Not reported |
| 332913 — Plumbing Fixture Fitting and Trim Manufacturing | Not reported |
| 332996 — Fabricated Pipe and Pipe Fitting Manufacturing | Not reported |
| 333131 — Mining Machinery and Equipment Manufacturing | Not reported |
| 333511 — Industrial Mold Manufacturing | Not reported |
| 333515 — Cutting Tool and Machine Tool Accessory Manufacturing | Not reported |
| 333517 — Machine Tool Manufacturing | Not reported |
| 333519 — Rolling Mill and Other Metalworking Machinery Manufacturing | Not reported |
| 333994 — Industrial Process Furnace and Oven Manufacturing | Not reported |
| 334519 — Other Measuring and Controlling Device Manufacturing | Not reported |
| 335932 — Noncurrent-Carrying Wiring Device Manufacturing | Not reported |
| 335991 — Carbon and Graphite Product Manufacturing | Not reported |
| 336370 — Motor Vehicle Metal Stamping | Not reported |
| 339993 — Fastener, Button, Needle, and Pin Manufacturing | Not reported |