| 7304.31.60 | 50 | Other | kg | | | |
| 7304.39.00 | | Other | | Free | | 25% |
| 7304.39.00 | 02 | Having an outside diameter less than 38.1 mm | kg | | | |
| 7304.39.00 | 04 | Having an outside diameter of 38.1 mm or more but less than 190.5 mm | kg | | | |
| 7304.39.00 | 06 | Having an outside diameter of 190.5 mm or more but not exceeding 285.8 mm | kg | | | |
| 7304.39.00 | 08 | Having an outside diameter exceeding 285.8 mm | kg | | | |
| 7304.39.00 | 16 | Galvanized, having an outside diameter not exceeding 114.3 mm | kg | | | |
| 7304.39.00 | 20 | Having an outside diameter less than 38.1 mm | kg | | | |
| 7304.39.00 | 24 | Having a wall thickness less than 6.4 mm | kg | | | |
| 7304.39.00 | 28 | Having a wall thickness of 6.4 mm or more but not exceeding 12.7 mm | kg | | | |
| 7304.39.00 | 32 | Having a wall thickness exceeding 12.7 mm | kg | | | |
| 7304.39.00 | 48 | Having a wall thickness less than 12.7 mm | kg | | | |
| 7304.39.00 | 52 | Having a wall thickness of 12.7 mm or more but less than 19 mm | kg | | | |
| 7304.39.00 | 36 | Having a wall thickness less than 12.7 mm | kg | | | |
| 7304.39.00 | 40 | Having a wall thickness of 12.7 mm or more but less than 19 mm | kg | | | |
| 7304.39.00 | 62 | Having a wall thickness less than 12.7 mm | kg | | | |
| 7304.39.00 | 68 | Having a wall thickness of 12.7 mm or more but less than 19 mm | kg | | | |
| 7304.39.00 | 76 | Having a wall thickness less than 19 mm | kg | | | |
| 7304.41.30 | | Of an external diameter of less than 19 mm | | Free | | 36% |
| 7304.41.30 | 45 | Other | kg | | | |
| 7304.41.60 | | Other | | Free | | 36% |
| 7304.41.60 | 45 | Other | kg | | | |
| 7304.49.00 | | Other | | Free | | 36% |
| 7304.49.00 | 60 | Other | kg | | | |
| 7304.51.50 | | Other | | Free | | 35% |
