| HS Codes | Unit Code | Unit | Descriptions in Chinese | Descriptions in English |
|---|---|---|---|---|
| 74111011 | 9 | 千克 | 带有螺纹或翅片的精炼铜管，外径≤25mm | Tubes & pipes,of refined copper,threaded or with fins,outside D≤25mm |
| 74111019 | 9 | 千克 | 其他精炼铜管，外径≤25mm | Other tubes & pipes,of refined copper,outside D≤25mm |
| 74111020 | 9 | 千克 | 外径超过70毫米的精炼铜管 | Refined copper tubes & pipes, outside diameter＞70mm |
| 74111090 | 9 | 千克 | 其他精炼铜管，25mm＜外径≤70mm | Other tubes & pipes,of refined copper, nes |
| 74112110 | 9 | 千克 | 盘卷的铜锌合金（黄铜）管 | Tubes & pipes, of Cu-Zn base alloy(brass), in coils |
| 74112190 | 9 | 千克 | 其他铜锌合金（黄铜）管 | Other tubes & pipes, of Cu-Zn base alloy(brass), nes |
| 74112200 | 9 | 千克 | 铜镍合金或铜镍锌合金管 | Tubes & pipes, of Cu-Ni base alloy or Cu-Ni-Zn base alloy |
| 74112900 | 9 | 千克 | 其他铜合金管 | Tubes & pipes, of other copper alloy, nes |
