7305.12.00 | | Other tubes and pipes (for example, welded, riveted or similarly closed), having circular cross-sections, the external diameter of which exceeds 406.4 mm, of iron or steel. - Line pipe of a kind used for oil or gas pipelines: - Other, longitudinally welded | KGM | Free | CCCT, LDCT |
7305.12.00 | 11 | Other tubes and pipes (for example, welded, riveted or similarly closed), having circular cross-sections, the external diameter of which exceeds 406.4 mm, of iron or steel. - Line pipe of a kind used for oil or gas pipelines: - Other, longitudinally welded - Of an external diameter not exceeding 609.6 mm: - Of an A.P.I. grade not exceeding X-52 | KGM | | |
7305.12.00 | 19 | Other tubes and pipes (for example, welded, riveted or similarly closed), having circular cross-sections, the external diameter of which exceeds 406.4 mm, of iron or steel. - Line pipe of a kind used for oil or gas pipelines: - Other, longitudinally welded - Of an external diameter not exceeding 609.6 mm: - Other | KGM | | |
7305.12.00 | 20 | Other tubes and pipes (for example, welded, riveted or similarly closed), having circular cross-sections, the external diameter of which exceeds 406.4 mm, of iron or steel. - Line pipe of a kind used for oil or gas pipelines: - Other, longitudinally welded - Of alloy steel: - Of an external diameter exceeding 609.6 mm | KGM | | |