| 7307.99.50 | 15 | Of iron or nonalloy steel: | | | | |
| 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% |
| 7309.00.00 | | Reservoirs, tanks, vats and similar containers for any material (other than compressed or liquefied gas), of iron or steel, of a capacity exceeding 300 liters, whether or not lined or heat insulated, but not fitted with mechanical or thermal equipment | | Free | | 45% |
| 7310 | | Tanks, casks, drums, cans, boxes and similar containers, for any material (other than compressed or liquefied gas), of iron or steel, of a capacity not exceeding 300 liters, whether or not lined or heat insulated, but not fitted with mechanical or thermal equipment: | | | | |
| 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 | | Containers for compressed or liquefied gas, of iron or steel | | Free | | 25% |
| 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: | | | | |
| 7311.00.00 | 30 | Seamless steel containers not overwrapped, marked DOT 3A, 3AX, 3AA, 3AAX, 3B, 3E, 3HT, 3T or DOT-E followed by a specific exemption number | No. kg | | | |
| 7312 | | Stranded wire, ropes, cables, plaited bands, slings and the like, of iron or steel, not electrically insulated: | | | | |
| 7312.10.10 | 50 | Other, stranded wire having a lay or twist of not more than 1 revolution for a length equal to the strand diameter multiplied by 8.5 | kg | | | |
| 7312.10.30 | 10 | For prestressing concrete: | | | | |
| 7312.10.30 | 10 | Covered with textile or other non- metallic material | kg | | | |
| 7312.10.30 | 20 | Other, stranded wire having a lay or twist of not more than 1 revolution for a length equal to the strand diameter multiplied by 8.5 | kg | | | |
| 7312.10.30 | 70 | Covered with textile or other nonmetallic material | kg | | | |
| 7313.00.00 | 00 | Barbed wire of iron or steel; twisted hoop or single flat wire, barbed or not, and loosely twisted double wire, of a kind used for fencing, of iron or steel | kg | Free | | Free |
| 7314 | | Cloth (including endless bands), grill, netting and fencing, of iron or steel wire; expanded metal of iron or steel: | | | | |
| 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: | | | | |
| 7314.31.50 | 10 | Welded wire stucco netting, furred, not reinforced with supplemental horizontal wire | kg | | | |
| 7314.41.00 | 40 | Woven wire stucco netting, furred, not reinforced with supplemental horizontal wire: | | | | |
| 7314.41.00 | 40 | Of wire with maximum cross- sectional dimension of 1 mm | kg | | | |
| 7315 | | Chain and parts thereof, of iron or steel: | | | | |
| 7315.11.00 | 10 | Of not over 50 mm pitch and containing more than 3 parts per pitch: | | | | |
