33 Primary Metal Industries
Major Group: 33—Primary Metal IndustriesThis major group includes establishments engaged in smelting and refining ferrous and nonferrous metals from ore, pig, or scrap; in rolling, drawing, and alloying metals; in manufacturing castings and other basic metal products; and in manufacturing nails, spikes, and insulated wire and cable. This major group includes the production of coke.
Establishments primarily engaged in manufacturing metal forgings or stampings are classified in Industry Group 346.
- 331 Steel Works, Blast Furnaces, and Rolling And Finishing Mills
- 332 Iron And Steel Foundries
- 333 Primary Smelting And Refining Of Nonferrous Metals
- 334 Secondary Smelting And Refining Of Nonferrous Metals