| 7304.22.00 |  | Casing, tubing and drill pipe, of a kind used in drilling for oil or gas: |  |  |  |  | 
| 7304.22.00 |  | Drill pipe of stainless steel |  | Free |  | 35% | 
| 7304.22.00 | 30 | Having an outside diameter not exceeding 168.3 mm: |  |  |  |  | 
| 7304.22.00 | 30 | Having a wall thickness not exceeding 9.5 mm | kg |  |  |  | 
| 7304.22.00 | 45 | Having a wall thickness exceeding 9.5 mm | kg |  |  |  | 
| 7304.22.00 | 60 | Having an outside diameter exceeding 168.3 mm | kg |  |  |  |