| 7302 | | Railway or tramway track construction material of iron or steel, the following: rails, check-rails and rack rails, switch blades, crossing frogs, point rods and other crossing pieces, sleepers (cross-ties), fish-plates, chairs, chair wedges, sole plates (base plates), rail clips, bedplates, ties and other material specialized for jointing or fixing rails: | | | | |
| 7302.10 | | Rails: | | | | |
| 7302.10.10 | 10 | New: | | | | |
| 7302.10.10 | 10 | Not heat treated: | | | | |
| 7302.10.10 | 15 | Other: | | | | |
| 7302.10.10 | 35 | Heat treated: | | | | |
| 7302.10.10 | 45 | Other: | | | | |
| 7302.10.10 | 65 | Used: | | | | |
| 7302.10.50 | 40 | Used: | | | | |
| 7302.90 | | Other: | | | | |
| 7304 | | Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: | | | | |
| 7304.11.00 | | Line pipe of a kind used for oil or gas pipelines: | | | | |
| 7304.19 | | Other: | | | | |
| 7304.19.10 | 45 | Having an outside diameter of 215.9 mm or more but not exceeding 406.4 mm: | | | | |
| 7304.22.00 | | Casing, tubing and drill pipe, of a kind used in drilling for oil or gas: | | | | |
| 7304.22.00 | 30 | Having an outside diameter not exceeding 168.3 mm: | | | | |
| 7304.23 | | Other drill pipe: | | | | |
| 7304.23.60 | 30 | Having an outside diameter not exceeding 168.3 mm: | | | | |
| 7304.24 | | Other of stainless steel: | | | | |
| 7304.24.30 | | Casing: | | | | |
| 7304.24.30 | 10 | Having an outside diameter less than 215.9 mm: | | | | |
| 7304.24.30 | 30 | Having an outside diameter of 215.9 mm or more but not exceeding 285.8 mm: | | | | |
| 7304.24.30 | 50 | Having an outside diameter exceeding 285.8 mm but not exceeding 406.4 mm: | | | | |
| 7304.24.40 | 10 | Having an outside diameter less than 215.9 mm: | | | | |
| 7304.24.40 | 30 | Having an outside diameter of 215.9 mm or more but not exceeding 285.8 mm: | | | | |
Harmonized Tariff Schedule of the United States inquiry: 39�=
