NAICS 331419: Primary Smelting and Refining of Nonferrous Metal (except Copper and Aluminum)
NAICS 331419 - Primary Smelting and Refining of Nonferrous Metal (except Copper and Aluminum) covers the industrial processes involved in extracting and refining nonferrous metals from ores and scrap. This includes the production of metals such as lead, zinc, nickel, tin, and precious metals.
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