| 721710 | 721710 - Iron or non-alloy steel; wire, (not plated or coated), whethe |
| 721711 | 721711 - Wire, iron or non-alloy steel, not plated or coated, <0.25%C |
| 721712 | 721712 - Wire, iron or non-alloy steel, plated or coated with zinc <0. |
| 721713 | 721713 - Wire, iron or non-alloy steel, of base metal plated/coated ne |
| 721719 | 721719 - Wire, iron or non-alloy steel, <0.25% carbon, nes |
| 721720 | 721720 - Iron or non-alloy steel; wire, plated or coated with zinc |
| 721721 | 721721 - Wire, iron or non-alloy steel, not plated or coated, 0.25-0.6 |
| 721722 | 721722 - Wire, iron or non-alloy steel, zinc plated/coated, 0.25-0.6%C |
| 721723 | 721723 - Wire, iron or non-alloy steel, base metal plated/coated nes, |
| 721729 | 721729 - Wire, iron or non-alloy steel, 0.25-0.6% carbon, nes |
| 721730 | 721730 - Iron or non-alloy steel; wire, plated or coated with base met |
| 721731 | 721731 - Wire, iron or non-alloy steel, not plated or coated, >0.6%C |
| 721732 | 721732 - Wire, iron or non-alloy steel, zinc plated/coated, >0.6%C |
| 721733 | 721733 - Wire, iron or non-alloy steel, of base metal plated/coated ne |
| 721739 | 721739 - Wire, iron or non-alloy steel, more than 0.6% carbon, nes |
| 721790 | 721790 - Iron or non-alloy steel; wire, n.e.c. in heading no. 7217 |