| 331210 |
Pipe (e.g., heavy riveted, lock joint, seamless, welded) made from purchased iron or steel |
| 331210 |
Tube (e.g., heavy riveted, lock joint, seamless, welded) made from purchased iron or steel |
| 331210 |
Tubing, mechanical and hypodermic sizes, cold-drawn stainless steel, made from purchased steel |
| 331210 |
Well casings (e.g., heavy riveted, lock joint, welded, wrought) made from purchased iron or steel |
| 331221 |
Bars, concrete reinforcing (rebar), made from purchased steel in steel rolling mills |
| 331221 |
Bars, steel, made from purchased steel in cold rolling mills |
| 331221 |
Cold rolling steel shapes (e.g., bar, plate, rod, sheet, strip) made from purchased steel |
| 331221 |
Concrete reinforcing bar (rebar), made from purchased steel in cold rolling mills |
| 331221 |
Concrete reinforcing bar (rebar), made from purchased steel in steel rolling mills |
| 331221 |
Corrugating iron or steel in cold rolling mills made from purchased iron or steel |