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NAICS Code· 331423
NAICS 331423: Secondary Smelting, Refining, and Alloying of Copper
NAICS 331423 covers the secondary smelting, refining, and alloying of copper. This industrial process involves the recovery of copper from scrap materials and the production of high-purity copper and specialized copper alloys.
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NAICS code 331423 stands for Secondary Smelting, Refining, and Alloying of Copper. It is a North American Industry Classification System code used by the federal government to classify business activity for procurement and contracting purposes.
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