Iron and Steel Mills, Iron and Steel Pipe and Tube Manufacturing from Purchased Steel, Rolled Steel Shape Manufacturing, Primary Aluminum Production, Secondary Smelting and Alloying of Aluminum

Primary Smelting and Refining of Nonferrous Metal (except Copper and Aluminum), Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding, Secondary Smelting, Refining, and Alloying of Nonferrous Metal (except Copper and Aluminum), Nonferrous (except Aluminum) Die-Casting Foundries, Other Nonferrous Foundries (except Die-Casting)