| 721610 | 721610 - Iron or non-alloy steel; U, I or H sections, hot-rolled, hot- |
| 721621 | 721621 - Iron or non-alloy steel; L sections, hot-rolled, hot-drawn or |
| 721622 | 721622 - Iron or non-alloy steel; T sections, hot-rolled, hot-drawn or |
| 721631 | 721631 - Iron or non-alloy steel; U sections, hot-rolled, hot-drawn or |
| 721632 | 721632 - Iron or non-alloy steel; I sections, hot-rolled, hot-drawn or |
| 721633 | 721633 - Iron or non-alloy steel; H sections, hot-rolled, hot-drawn or |
| 721640 | 721640 - Iron or non-alloy steel; L or T sections, hot-rolled, hot-dra |
| 721650 | 721650 - Iron or non-alloy steel; angles, shapes and sections, n.e.c. |
| 721660 | 721660 - Sections, nes, iron or non-alloy steel, nfw than cold formed/ |
| 721661 | 721661 - Iron or non-alloy steel; angles, shapes and sections, cold-fo |
| 721669 | 721669 - Iron or non-alloy steel; angles, shapes and sections, cold-fo |
| 721690 | 721690 - Angles/shapes/sections, iron or non-alloy steel, nes |
| 721691 | 721691 - Iron or non-alloy steel; angles, shapes and sections, n.e.c. |
| 721699 | 721699 - Iron or non-alloy steel; angles, shapes and sections, n.e.c. |