| 7307.99.00 | 99 | Tube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel. - Other: - Other - Of alloy steel, other than stainless steel: - Other | KGM | | |
| 7307.93.00 | | Tube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel. - Other: - Butt welding fittings | KGM | Free | CCCT, LDCT |
| 7303.00.00 | | Tubes, pipes and hollow profiles, of cast iron. | KGM | Free | CCCT, LDCT |
| 7303.00.00 | 11 | Tubes, pipes and hollow profiles, of cast iron. - Not finned, threaded or flanged: - Soil pipes | KGM | | |
| 7303.00.00 | 12 | Tubes, pipes and hollow profiles, of cast iron. - Not finned, threaded or flanged: - Pressure pipes | KGM | | |
| 7303.00.00 | 90 | Tubes, pipes and hollow profiles, of cast iron. - Other | KGM | | |
| 73.04 | | Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel. | | | |
| 7304.11.00 | 00 | Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel. - Line pipe of a kind used for oil or gas pipelines: - Of stainless steel | KGM | Free | CCCT, LDCT |
| 7304.19.00 | | Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel. - Line pipe of a kind used for oil or gas pipelines: - Other | KGM | Free | CCCT, LDCT |
| 7304.19.00 | 11 | Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel. - Line pipe of a kind used for oil or gas pipelines: - Other - Of an external diameter not exceeding 265 mm: - Of iron or non-alloy steel | KGM | | |
| 7304.19.00 | 12 | Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel. - Line pipe of a kind used for oil or gas pipelines: - Other - Of an external diameter not exceeding 265 mm: - Of alloy steel | KGM | | |
| 7304.19.00 | 21 | Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel. - Line pipe of a kind used for oil or gas pipelines: - Other - Of an external diameter exceeding 265 mm: - Of iron or non-alloy steel | KGM | | |
| 7304.19.00 | 22 | Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel. - Line pipe of a kind used for oil or gas pipelines: - Other - Of an external diameter exceeding 265 mm: - Of alloy steel | KGM | | |
| 7304.22.00 | 00 | Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel. - Casing, tubing and drill pipe, of a kind used in drilling for oil or gas: - Drill pipe of stainless steel | KGM | Free | CCCT, LDCT |
| 7304.23.00 | | Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel. - Casing, tubing and drill pipe, of a kind used in drilling for oil or gas: - Other drill pipe | KGM | Free | CCCT, LDCT |
| 7307.93.00 | 10 | Tube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel. - Other: - Butt welding fittings - Of iron or non-alloy steel | KGM | | |
| 7304.23.00 | 11 | Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel. - Casing, tubing and drill pipe, of a kind used in drilling for oil or gas: - Other drill pipe - New: - Of iron or non-alloy steel | KGM | | |
| 7304.23.00 | 12 | Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel. - Casing, tubing and drill pipe, of a kind used in drilling for oil or gas: - Other drill pipe - New: - Of alloy steel | KGM | | |
| 7304.23.00 | 91 | Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel. - Casing, tubing and drill pipe, of a kind used in drilling for oil or gas: - Other drill pipe - Other: - Of iron or non-alloy steel | KGM | | |
| 7304.23.00 | 92 | Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel. - Casing, tubing and drill pipe, of a kind used in drilling for oil or gas: - Other drill pipe - Other: - Of alloy steel | KGM | | |
| 7304.24.00 | 00 | Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel. - Casing, tubing and drill pipe, of a kind used in drilling for oil or gas: - Other, of stainless steel | KGM | Free | CCCT, LDCT |
| 7304.29.00 | | Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel. - Casing, tubing and drill pipe, of a kind used in drilling for oil or gas: - Other | KGM | Free | CCCT, LDCT |
| 7304.29.00 | 11 | Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel. - Casing, tubing and drill pipe, of a kind used in drilling for oil or gas: - Other - Casing, of an external diameter exceeding 114.3 mm but not exceeding 177.8 mm: - Of an A.P.I. grade H-40, J-55, K-55 or equivalent proprietary specification | KGM | | |
| 7304.29.00 | 19 | Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel. - Casing, tubing and drill pipe, of a kind used in drilling for oil or gas: - Other - Casing, of an external diameter exceeding 114.3 mm but not exceeding 177.8 mm: - Other | KGM | | |
| 7304.49.00 | | Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel. - Other, of circular cross-section, of stainless steel: - Other | KGM | Free | CCCT, LDCT |
Harmonized Tariff Schedule of the Canada inquiry: aircraft+parts
