| HS Codes | Unit Code | Unit | Descriptions in Chinese | Descriptions in English |
|---|---|---|---|---|
| 70140010 | 9 | 千克 | 光学仪器用未经光学加工的光学元件毛坯 | Optical elements of glass for optical instruments, not opticly workd |
| 70140090 | 9 | 千克 | 未经光学加工的信号玻璃器等玻璃制光学元件 | Signalling glassware (excl. 70.15), not optically worked |
