- Blast furnaces and steel mills (2)
- Steel wire and related products (1)
- Malleable iron foundries (1)
- Primary nonferrous metals, nec (1)
- Secondary nonferrous metals (1)
- Copper rolling and drawing (1)
- Aluminum extruded products (1)
- Aluminum foundries (3)
- Copper foundries (5)
- Metal heat treating (1)
