- Blast furnaces and steel mills (68)
- Electrometallurgical products (1)
- Steel wire and related products (18)
- Cold finishing of steel shapes (4)
- Steel pipe and tubes (14)
- Gray and ductile iron foundries (5)
- Malleable iron foundries (1)
- Steel investment foundries (10)
- Steel foundries, nec (13)
- Primary aluminum (9)
- Primary nonferrous metals, nec (8)
- Secondary nonferrous metals (7)
- Copper rolling and drawing (1)
- Aluminum sheet, plate, and foil (6)
- Aluminum extruded products (9)
- Aluminum rolling and drawing, nec (2)
- Nonferrous rolling and drawing, nec (14)
- Nonferrous wiredrawing and insulating (7)
- Aluminum die-castings (9)
- Nonferrous die-castings except aluminum (5)
- Aluminum foundries (14)
- Copper foundries (17)
- Nonferrous foundries, nec (16)
- Metal heat treating (10)
- Primary metal products (22)
