3314 Nonferrous Metal (except Aluminum) Production and Processing This NAICS Industry Group includes establishments classified in the following NAICS Industries: 33141, Nonferrous Metal (except Aluminum) Smelting and Refining; 33142, Copper Rolling, Drawing, Extruding, and Alloying; and 33149, Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, Extruding, and Alloying.