331314  Secondary Smelting and Alloying of Aluminum

This U.S. industry comprises establishments primarily engaged in (1)
recovering aluminum and aluminum alloys from scrap and/or dross (i.e.,
secondary smelting) and making billet or ingot (except by rolling)
and/or (2) manufacturing alloys, powder, paste, or flake from purchased
aluminum.

The data published with NAICS code 331314 include the following
SIC industries:

3341 Secondary nonferrous metals (pt)
3399 Primary metal products, n.e.c. (pt)