| HS Codes | Unit Code | Unit | Descriptions in Chinese | Descriptions in English |
|---|---|---|---|---|
| 74121000 | 9 | 千克 | 精炼铜管子附件 | Fittings, tubes & pipes, of refined Cu |
| 74122010 | 9 | 千克 | 铜镍合金或铜镍锌合金管子附件 | Fittings, tubes & pipes, of Cu-Ni or Cu-Ni-Zn base alloys |
| 74122090 | 9 | 千克 | 其他铜合金管子附件 | Fittings, tubes & pipes, of Cu alloys, nes |
