- Blast furnaces and steel mills (16)
- Steel wire and related products (8)
- Steel pipe and tubes (2)
- Gray and ductile iron foundries (2)
- Steel investment foundries (1)
- Steel foundries, nec (2)
- Primary aluminum (2)
- Primary nonferrous metals, nec (6)
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- Aluminum sheet, plate, and foil (2)
- Aluminum extruded products (3)
- Nonferrous rolling and drawing, nec (3)
- Nonferrous die-castings except aluminum (1)
- Aluminum foundries (1)
- Copper foundries (10)
- Nonferrous foundries, nec (2)
- Metal heat treating (1)
- Primary metal products (5)
