| 7304.51 | | Other, of circular cross section, of other alloy steel: | | | | |
| 7305 | | Other tubes and pipes (for example, welded, riveted or similarly closed), having circular cross sections, the external diameter of which exceeds 406.4 mm, of iron or steel: | | | | |
| 7306.30 | | Other, welded, of circular cross section, of iron or nonalloy steel: | | | | |
| 7306.30.50 | 28 | Internally coated or lined with a non-electrically insulating material, suitable for use as electrical conduit | kg | | | |
| 7306.40 | | Other, welded, of circular cross section, of stainless steel: | | | | |
| 7306.50 | | Other, welded, of circular cross section, of other alloy steel: | | | | |
| 7306.61 | | Other, welded, of noncircular cross section: | | | | |
| 7306.61 | | Of square or rectangular cross section: | | | | |
| 7306.69 | | Of other noncircular cross section: | | | | |
| 7308 | | Structures (excluding prefabricated buildings of heading 9406) and parts of structures (for example, bridges and bridge sections, lock gates, towers, lattice masts, roofs, roofing frameworks, doors and windows and their frames and thresholds for doors, shutters, balustrades, pillars and columns) of iron or steel; plates, rods, angles, shapes, sections, tubes and the like, prepared for use in structures, of iron or steel: | | | | |
| 7308.10.00 | 00 | Bridges and bridge sections | kg | Free | | 45% |
| 7308.90.95 | 60 | Architectural and ornamental work | kg | | | |
| 7310.21.00 | 25 | Containers, of circular cross section, of a volume capacity between 11.4 liters and 26.6 liters, of a kind used for the conveyance of goods | No. | | | |
| 7310.29.00 | 25 | Containers, of circular cross section, of a volume capacity between 11.4 liters and 26.6 liters, of a kind used for the conveyance of goods | No. | | | |
| 7311.00.00 | 30 | Certified prior to exportation to have been made in accordance with the safety requirements of sections 178.36 through 178.68 of title 49 CFR or under a specific exemption to those requirements: | | | | |
| 7312 | | Stranded wire, ropes, cables, plaited bands, slings and the like, of iron or steel, not electrically insulated: | | | | |
| 7314.20.00 | 00 | Grill, netting and fencing, welded at the intersection, of wire with a maximum cross-sectional dimension of 3 mm or more and having a mesh size of 100 cm2 or more | kg | Free | | 45% |
| 7314.31 | | Other grill, netting and fencing, welded at the intersection: | | | | |
| 7314.41.00 | 40 | Of wire with maximum cross- sectional dimension of 1 mm | kg | | | |
| 7315.89.10 | 00 | With links of essentially round cross sections: | | | | |
| 7320.20.50 | 10 | Helical springs, of wire having a cross-sectional dimension of less than 5.1 mm: | | | | |
| 7320.20.50 | 45 | Helical springs, of wire having a cross-sectional dimension of 5.1 mm or more but less than 12.7 mm | kg | | | |
| 7321 | | Stoves, ranges, grates, cookers (including those with subsidiary boilers for central heating), barbecues, braziers, gas rings, plate warmers and similar nonelectric domestic appliances, and parts thereof, of iron or steel: | | | | |
| 7322 | | Radiators for central heating, not electrically heated, and parts thereof, of iron or steel; air heaters and hot air distributors (including distributors which can also distribute fresh or conditioned air), not electrically heated, incorpora- ting a motor-driven fan or blower, and parts thereof, of iron or steel: | | | | |
| 7322.90.00 | 15 | Air heaters, not electrically heated, incorporating a motor-driven fan or blowerNo. | kg | | | |
