| 7304.29.00 | 61 | 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 - Tubing, of an external diameter exceeding 60.3 mm but not exceeding 73 mm: - Of an A.P.I. grade H-40, J-55 or equivalent proprietary specification | KGM | | |
| 7304.29.00 | 69 | 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 - Tubing, of an external diameter exceeding 60.3 mm but not exceeding 73 mm: - Other | KGM | | |
| 7304.29.00 | 71 | 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 - Tubing, of an external diameter exceeding 73 mm: - Of an A.P.I. grade H-40, J-55 or equivalent proprietary specification | KGM | | |
| 7315.19.00 | 90 | Chain and parts thereof, of iron or steel. - Articulated link chain and parts thereof: - Parts - Other | KGM | | |
| 7315.20.00 | 00 | Chain and parts thereof, of iron or steel. - Skid chain | KGM | 6% | CCCT, LDCT |
| 7315.81.00 | 00 | Chain and parts thereof, of iron or steel. - Other chain: - Stud-link | KGM | Free | CCCT, LDCT |
| 7315.82.00 | | Chain and parts thereof, of iron or steel. - Other chain: - Other, welded link | KGM | Free | CCCT, LDCT |
| 7304.29.00 | 79 | 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 - Tubing, of an external diameter exceeding 73 mm: - Other | KGM | | |
| 7304.31.00 | | Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel. - Other, of circular cross-section, of iron or non-alloy steel: - Cold-drawn or cold-rolled (cold-reduced) | KGM | Free | CCCT, LDCT |
| 7304.31.00 | 10 | Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel. - Other, of circular cross-section, of iron or non-alloy steel: - Cold-drawn or cold-rolled (cold-reduced) - Mechanical tubes and pipes | KGM | | |
| 7304.31.00 | 21 | Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel. - Other, of circular cross-section, of iron or non-alloy steel: - Cold-drawn or cold-rolled (cold-reduced) - Pressure tubes and pipes: - For power boilers | KGM | | |
| 7304.31.00 | 28 | Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel. - Other, of circular cross-section, of iron or non-alloy steel: - Cold-drawn or cold-rolled (cold-reduced) - Pressure tubes and pipes: - For other boilers | KGM | | |
| 7304.31.00 | 29 | Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel. - Other, of circular cross-section, of iron or non-alloy steel: - Cold-drawn or cold-rolled (cold-reduced) - Pressure tubes and pipes: - Other | KGM | | |
| 7304.31.00 | 90 | Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel. - Other, of circular cross-section, of iron or non-alloy steel: - Cold-drawn or cold-rolled (cold-reduced) - Other | KGM | | |
| 7304.39.00 | | Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel. - Other, of circular cross-section, of iron or non-alloy steel: - Other | KGM | Free | CCCT, LDCT |
| 7304.39.00 | 20 | Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel. - Other, of circular cross-section, of iron or non-alloy steel: - Other - Tubes and pipes, for power boilers | KGM | | |
| 7304.39.00 | 30 | Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel. - Other, of circular cross-section, of iron or non-alloy steel: - Other - Tubes and pipes, for other boilers | KGM | | |
| 7304.39.00 | 40 | Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel. - Other, of circular cross-section, of iron or non-alloy steel: - Other - Mechanical tubes and pipes | KGM | | |
| 7304.39.00 | 50 | Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel. - Other, of circular cross-section, of iron or non-alloy steel: - Other - Standard pipes | KGM | | |
| 7304.39.00 | 90 | Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel. - Other, of circular cross-section, of iron or non-alloy steel: - Other - Other | KGM | | |
| 7304.41 | | Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel. - Other, of circular cross-section, of stainless steel: - Cold-drawn or cold-rolled (cold-reduced) | | | |
| 7315.82.00 | 20 | Chain and parts thereof, of iron or steel. - Other chain: - Other, welded link - Of alloy steel | KGM | | |
| 7315.89.00 | | Chain and parts thereof, of iron or steel. - Other chain: - Other | KGM | Free | AUT, NZT, |
| 7315.89.00 | 10 | Chain and parts thereof, of iron or steel. - Other chain: - Other - Bead or ball chain | KGM | | |
| 7315.89.00 | 20 | Chain and parts thereof, of iron or steel. - Other chain: - Other - Flat link | KGM | | |
Harmonized Tariff Schedule of the Canada inquiry: aircraft+parts
