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Found 2 results for "defense metals"
331410
Nonferrous Metal (except Aluminum) Smelting and Refining
NAICS code 331410 covers establishments primarily engaged in smelting ores into nonferrous metals, excluding aluminum, and the primary refining of the...
nonferrous metals
smelting
refining
electrolytic refining
copper production
331492
Secondary Smelting, Refining, and Alloying of Nonferrous Metal (except Copper and Aluminum)
NAICS code 331492 covers establishments primarily engaged in the secondary smelting, refining, and alloying of nonferrous metals excluding copper and...
secondary smelting
nonferrous metals
metal refining
alloying
scrap metal recovery