7304.24.40 | 50 | Having an outside diameter exceeding 285.8 mm but not exceeding 406.4 mm: | | | | |
7304.24.60 | 15 | Having an outside diameter not exceeding 114.3 mm: | | | | |
7304.29 | | Other: | | | | |
7304.29.10 | | Casing: | | | | |
7304.29.10 | | Of iron or nonalloy steel: | | | | |
7304.29.10 | 10 | Having an outside diameter less than 215.9 mm: | | | | |
7304.29.10 | 30 | Having an outside diameter of 215.9 mm or more but not exceeding 285.8 mm: | | | | |
7304.29.10 | 50 | Having an outside diameter exceed 285.8 mm but not exceeding 406.4 mm: | | | | |
7304.29.20 | 10 | Having an outside diameter less than 215.9 mm: | | | | |
7304.29.20 | 30 | Having an outside diameter of 215.9 mm or more but not exceeding 285.8 mm: | | | | |
7304.29.20 | 50 | Having an outside diameter exceeding 285.8 mm but not exceeding 406.4 mm: | | | | |
7304.29.31 | 10 | Having an outside diameter less than 215.9 mm: | | | | |
7304.29.31 | 30 | Having an outside diameter of 215.9 mm or more but not exceeding 285.8 mm: | | | | |
7304.29.31 | 50 | Having an outside diameter exceeding 285.8 mm but not exceeding 406.4 mm: | | | | |
7304.29.31 | | Of other alloy steel: | | | | |
7304.29.41 | 10 | Having an outside diameter less than 215.9 mm: | | | | |
7304.29.41 | 30 | Having an outside diameter of 215.9 mm or more but not exceeding 285.8 mm: | | | | |
7304.29.41 | 50 | Having an outside diameter exceeding 285.8 mm but not exceeding 406.4 mm: | | | | |
7304.29.50 | | Tubing: | | | | |
7304.29.50 | 15 | Having an outside diameter not exceeding 114.3 mm: | | | | |
7304.29.61 | 15 | Having an outside diameter not exceeding 114.3 mm: | | | | |
7304.31 | | Other, of circular cross section, of iron or nonalloy steel: | | | | |
7304.31 | | Cold-drawn or cold-rolled (cold-reduced): | | | | |
7304.39.00 | 02 | Suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces and feedwater heaters: | | | | |
7304.39.00 | 16 | Other: | | | | |