NAICS 331221 — Rolled Steel Shape Manufacturing 
BEA sector: Steel product manufacturing from purchased steel
Activity: Bars, concrete reinforcing (rebar), made from purchased steel in steel rolling mills
Activity: Bars, steel, made in cold rolling mills made from purchased steel
Activity: Cold rolling steel shapes (e.g., bar, plate, rod, sheet, strip) made from purchased steel
Activity: Concrete reinforcing bar (rebar), made from purchased steel in cold rolling mills
Activity: Concrete reinforcing bar (rebar), made from purchased steel in steel rolling mills
Activity: Corrugating iron or steel in cold rolling mills made from purchased iron or steel
Activity: Flakes made from purchased iron or steel
Activity: Flat bright steel strip made in cold rolling mills made from purchased steel
Activity: Hot-rolling purchased steel
Activity: Metal powder and flake made from purchased iron or steel
Activity: Nut rods, iron or steel, made in cold rolling mills
Activity: Paste made from purchased iron or steel
Activity: Powder made from  purchased iron or steel
Activity: Razor blade strip steel made in cold rolling mills
Activity: Wire, flat, rolled strip, made in cold rolling mills