| HS Codes | Unit Code | Unit | Descriptions in Chinese | Descriptions in English |
|---|---|---|---|---|
| 91111000 | 1 | 只 | 贵金属或包贵金属表壳 | Watch cases of precious metal or of metal clad with precious metal |
| 91112000 | 1 | 只 | 贱金属表壳，不论是否镀金或镀银 | Watch cases of base metal |
| 91118000 | 1 | 只 | 其他表壳 | Watch cases, nes |
| 91119000 | 9 | 千克 | 表壳零件 | Parts of watch cases |
