| 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 |
| 7307.29.91 | 00 | Tube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel. - Other, of stainless steel: - Other - Other: - Not further worked than forged or bent to shape | KGM | Free | AUT, NZT, |
| 7307.91.00 | 91 | Tube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel. - Other: - Flanges - Other: - Of iron or non-alloy steel | KGM | | |
| 7307.91.00 | 92 | Tube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel. - Other: - Flanges - Other: - Of alloy steel, other than stainless steel | KGM | | |
| 7307.92.00 | | Tube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel. - Other: - Threaded elbows, bends and sleeves | KGM | Free | CCCT, LDCT |
| 7307.91.00 | 11 | Tube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel. - Other: - Flanges - Not further worked than forged or bent to shape: - Closed die forgings or seam legs profiled rings, of carbon steel, to specification ANSI B16.5, A.P.I. B16.47B, MSS B16.47A, AWWA C207B or AWWA C207E, for use in the manufacture of finished flanges | KGM | | |
| 7307.91.00 | 19 | Tube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel. - Other: - Flanges - Not further worked than forged or bent to shape: - Other | KGM | | |
| 7307.92.00 | 20 | Tube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel. - Other: - Threaded elbows, bends and sleeves - Of alloy steel, other than stainless steel | KGM | | |
| 7307.93.00 | 20 | Tube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel. - Other: - Butt welding fittings - Of alloy steel, other than stainless steel | KGM | | |
| 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 | | |
| 74.12 | | Copper tube or pipe fittings (for example, couplings, elbows, sleeves). | | | |
| 7412.10.00 | | Copper tube or pipe fittings (for example, couplings, elbows, sleeves). - Of refined copper | KGM | Free | CCCT, LDCT |
| 7412.10.00 | 11 | Copper tube or pipe fittings (for example, couplings, elbows, sleeves). - Of refined copper - Pressure type: - Wrought | KGM | | |
| 7412.10.00 | 19 | Copper tube or pipe fittings (for example, couplings, elbows, sleeves). - Of refined copper - Pressure type: - Other | KGM | | |
| 7412.10.00 | 90 | Copper tube or pipe fittings (for example, couplings, elbows, sleeves). - Of refined copper - Other | KGM | | |
| 7412.20.00 | | Copper tube or pipe fittings (for example, couplings, elbows, sleeves). - Of copper alloys | KGM | Free | CCCT, LDCT |
| 7412.20.00 | 11 | Copper tube or pipe fittings (for example, couplings, elbows, sleeves). - Of copper alloys - Pressure type: - Forged | KGM | | |
| 7412.20.00 | 12 | Copper tube or pipe fittings (for example, couplings, elbows, sleeves). - Of copper alloys - Pressure type: - Cast | KGM | | |
| 7412.20.00 | 19 | Copper tube or pipe fittings (for example, couplings, elbows, sleeves). - Of copper alloys - Pressure type: - Other | KGM | | |
| 7412.20.00 | 90 | Copper tube or pipe fittings (for example, couplings, elbows, sleeves). - Of copper alloys - Other | KGM | | |
| 75.07 | | Nickel tubes, pipes and tube or pipe fittings (for example, couplings, elbows, sleeves). | | | |
| 7507.11.00 | 00 | Nickel tubes, pipes and tube or pipe fittings (for example, couplings, elbows, sleeves). - Tubes and pipes: - Of nickel, not alloyed | KGM | Free | CCCT, LDCT |
| 7507.12.00 | | Nickel tubes, pipes and tube or pipe fittings (for example, couplings, elbows, sleeves). - Tubes and pipes: - Of nickel alloys | KGM | Free | CCCT, LDCT |
| 7507.12.00 | 12 | Nickel tubes, pipes and tube or pipe fittings (for example, couplings, elbows, sleeves). - Tubes and pipes: - Of nickel alloys - Seamless, unworked, containing by weight 60% or more of nickel: - Nickel-copper alloys | KGM | | |
| 7507.12.00 | 13 | Nickel tubes, pipes and tube or pipe fittings (for example, couplings, elbows, sleeves). - Tubes and pipes: - Of nickel alloys - Seamless, unworked, containing by weight 60% or more of nickel: - Nickel-chromium-iron alloys | KGM | | |
Harmonized Tariff Schedule of the Canada inquiry: Vaccum
