| 7305.11 |  | Longitudinally submerged arc welded: |  |  |  |  | 
| 7305.11.10 | 30 | With an external diameter exceeding 406.4 mm but not exceeding 609.6 mm | kg |  |  |  | 
| 7305.11.10 | 60 | With an external diameter exceeding 609.6 mm | kg |  |  |  | 
| 7305.12 |  | Other, longitudinally welded: |  |  |  |  | 
| 7305.12.10 | 30 | With an external diameter exceeding 406.4 mm but not exceeding 609.6 mm | kg |  |  |  | 
| 7305.12.10 | 60 | With an external diameter exceeding 609.6 mm | kg |  |  |  | 
| 7305.19.10 | 30 | With an external diameter exceeding 406.4 mm but not exceeding 609.6 mm | kg |  |  |  | 
| 7305.19.10 | 60 | With an external diameter exceeding 609.6 mm | kg |  |  |  | 
| 7305.31 |  | Other, welded: |  |  |  |  | 
| 7305.31 |  | Longitudinally welded: |  |  |  |  | 
| 7306 |  | Other tubes, pipes and hollow profiles (for example, open seamed or welded, riveted or similarly closed), of iron or steel: |  |  |  |  | 
| 7306.11.00 |  | Welded, of stainless steel |  | Free |  | 10% | 
| 7306.11.00 | 10 | With an outside diameter not exceeding 114.3 mm | kg |  |  |  | 
| 7306.11.00 | 50 | With an outside diameter exceeding 114.3 mm | kg |  |  |  | 
| 7306.19.10 | 10 | With an outside diameter not exceeding 114.3 mm | kg |  |  |  | 
| 7306.19.10 | 50 | With an outside diameter exceeding 114.3 mm | kg |  |  |  | 
| 7306.19.51 | 10 | With an outside diameter not exceeding 114.3 mm | kg |  |  |  | 
| 7306.19.51 | 50 | With an outside diameter exceeding 114.3 mm | kg |  |  |  | 
| 7306.21 |  | Welded of stainless steel: |  |  |  |  | 
| 7306.21.80 | 10 | Imported with coupling | kg |  |  |  | 
| 7306.29.10 | 30 | Imported with coupling | kg |  |  |  | 
| 7306.29.60 | 10 | Imported with coupling | kg |  |  |  | 
| 7306.29.81 | 10 | Imported with coupling | kg |  |  |  | 
| 7306.30 |  | Other, welded, of circular cross section, of iron or nonalloy steel: |  |  |  |  | 
| 7306.30.10 | 00 | Having a wall thickness of less than 1.65 mm | kg | Free |  | 25% |