| 7306.29.00 | 31 | Other tubes, pipes and hollow profiles (for example, open seam or welded, riveted or similarly closed), of iron or steel. - Casing and tubing of a kind used in drilling for oil or gas: - Other - Casing, of an external diameter exceeding 298.4 mm: - Of an A.P.I. grade H-40, J-55, K-55 or equivalent proprietary specification | KGM | | |
| 7306.29.00 | 39 | Other tubes, pipes and hollow profiles (for example, open seam or welded, riveted or similarly closed), of iron or steel. - Casing and tubing of a kind used in drilling for oil or gas: - Other - Casing, of an external diameter exceeding 298.4 mm: - Other | KGM | | |
| 7306.30.00 | 11 | Other tubes, pipes and hollow profiles (for example, open seam or welded, riveted or similarly closed), of iron or steel. - Other, welded, of circular cross-section, of iron or non-alloy steel - Galvanized, of an external diameter not exceeding 114.3 mm: - Mechanical tubes and pipes | KGM | | |
| 7306.30.00 | 12 | Other tubes, pipes and hollow profiles (for example, open seam or welded, riveted or similarly closed), of iron or steel. - Other, welded, of circular cross-section, of iron or non-alloy steel - Galvanized, of an external diameter not exceeding 114.3 mm: - Pressure tubes and pipes | KGM | | |
| 7306.30.00 | 13 | Other tubes, pipes and hollow profiles (for example, open seam or welded, riveted or similarly closed), of iron or steel. - Other, welded, of circular cross-section, of iron or non-alloy steel - Galvanized, of an external diameter not exceeding 114.3 mm: - Hollow structural sections | KGM | | |
| 7306.30.00 | 14 | Other tubes, pipes and hollow profiles (for example, open seam or welded, riveted or similarly closed), of iron or steel. - Other, welded, of circular cross-section, of iron or non-alloy steel - Galvanized, of an external diameter not exceeding 114.3 mm: - Standard pipes | KGM | | |
| 7306.30.00 | 15 | Other tubes, pipes and hollow profiles (for example, open seam or welded, riveted or similarly closed), of iron or steel. - Other, welded, of circular cross-section, of iron or non-alloy steel - Galvanized, of an external diameter not exceeding 114.3 mm: - Conduits | KGM | | |
| 7306.30.00 | 19 | Other tubes, pipes and hollow profiles (for example, open seam or welded, riveted or similarly closed), of iron or steel. - Other, welded, of circular cross-section, of iron or non-alloy steel - Galvanized, of an external diameter not exceeding 114.3 mm: - Other | KGM | | |
| 7306.30.00 | 21 | Other tubes, pipes and hollow profiles (for example, open seam or welded, riveted or similarly closed), of iron or steel. - Other, welded, of circular cross-section, of iron or non-alloy steel - Other, of an external diameter not exceeding 114.3 mm: - Mechanical tubes and pipes | KGM | | |
| 7306.30.00 | 22 | Other tubes, pipes and hollow profiles (for example, open seam or welded, riveted or similarly closed), of iron or steel. - Other, welded, of circular cross-section, of iron or non-alloy steel - Other, of an external diameter not exceeding 114.3 mm: - Pressure tubes and pipes | KGM | | |
| 7306.30.00 | 23 | Other tubes, pipes and hollow profiles (for example, open seam or welded, riveted or similarly closed), of iron or steel. - Other, welded, of circular cross-section, of iron or non-alloy steel - Other, of an external diameter not exceeding 114.3 mm: - Hollow structural sections | KGM | | |
| 7306.30.00 | 24 | Other tubes, pipes and hollow profiles (for example, open seam or welded, riveted or similarly closed), of iron or steel. - Other, welded, of circular cross-section, of iron or non-alloy steel - Other, of an external diameter not exceeding 114.3 mm: - Standard pipes | KGM | | |
| 7306.30.00 | 25 | Other tubes, pipes and hollow profiles (for example, open seam or welded, riveted or similarly closed), of iron or steel. - Other, welded, of circular cross-section, of iron or non-alloy steel - Other, of an external diameter not exceeding 114.3 mm: - Conduits | KGM | | |
| 7306.30.00 | 29 | Other tubes, pipes and hollow profiles (for example, open seam or welded, riveted or similarly closed), of iron or steel. - Other, welded, of circular cross-section, of iron or non-alloy steel - Other, of an external diameter not exceeding 114.3 mm: - Other | KGM | | |
| 7306.30.00 | 31 | Other tubes, pipes and hollow profiles (for example, open seam or welded, riveted or similarly closed), of iron or steel. - Other, welded, of circular cross-section, of iron or non-alloy steel - Of an external diameter exceeding 114.3 mm: - Mechanical tubes and pipes | KGM | | |
| 7306.30.00 | 32 | Other tubes, pipes and hollow profiles (for example, open seam or welded, riveted or similarly closed), of iron or steel. - Other, welded, of circular cross-section, of iron or non-alloy steel - Of an external diameter exceeding 114.3 mm: - Pressure tubes and pipes | KGM | | |
| 7306.30.00 | 33 | Other tubes, pipes and hollow profiles (for example, open seam or welded, riveted or similarly closed), of iron or steel. - Other, welded, of circular cross-section, of iron or non-alloy steel - Of an external diameter exceeding 114.3 mm: - Hollow structural sections | KGM | | |
| 7306.30.00 | 34 | Other tubes, pipes and hollow profiles (for example, open seam or welded, riveted or similarly closed), of iron or steel. - Other, welded, of circular cross-section, of iron or non-alloy steel - Of an external diameter exceeding 114.3 mm: - Standard pipes | KGM | | |
| 7306.30.00 | 39 | Other tubes, pipes and hollow profiles (for example, open seam or welded, riveted or similarly closed), of iron or steel. - Other, welded, of circular cross-section, of iron or non-alloy steel - Of an external diameter exceeding 114.3 mm: - Other | KGM | | |
| 7306.40.00 | 10 | Other tubes, pipes and hollow profiles (for example, open seam or welded, riveted or similarly closed), of iron or steel. - Other, welded, of circular cross-section, of stainless steel - Of an external diameter not exceeding 25.3 mm | KGM | | |
| 7306.40.00 | 20 | Other tubes, pipes and hollow profiles (for example, open seam or welded, riveted or similarly closed), of iron or steel. - Other, welded, of circular cross-section, of stainless steel - Of an external diameter exceeding 25.3 mm but not exceeding 114.9 mm | KGM | | |
| 7306.40.00 | 30 | Other tubes, pipes and hollow profiles (for example, open seam or welded, riveted or similarly closed), of iron or steel. - Other, welded, of circular cross-section, of stainless steel - Of an external diameter exceeding 114.9 mm | KGM | | |
| 7307.29.10 | 00 | Tube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel. - Other, of stainless steel: - Other - To be employed in pneumatically breaking down the working face of a mine in mining, quarrying or developing mineral deposits | KGM | Free | CCCT, LDCT |
| 7307.29.20 | 00 | Tube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel. - Other, of stainless steel: - Other - For installation between the wellhead assembly or surface oil pumping unit and the field marketing valve at oil or natural gas wells | KGM | 4.5% | CCCT, LDCT |
| 7307.99.00 | 10 | Tube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel. - Other: - Other - Of alloy steel, other than stainless steel, further worked than forged or bent to shape, for installation between the wellhead assembly or surface oil pumping unit and the field marketing valve at oil or natural gas wells | KGM | | |
Harmonized Tariff Schedule of the Canada inquiry: 728
