NAIC - SIC Codes Crosswalk » NAICS Code-331492-Secondary-Smelting-Refining-and-Alloying-of-Nonferrous-Metal-except-Copper-and-Aluminum-789
NAIC 331492 Secondary Smelting, Refining, and Alloying of Nonferrous Metal (except Copper and Aluminum) = SIC 3399 Primary Metal Products