| HS Codes | Unit Code | Unit | Descriptions in Chinese | Descriptions in English |
|---|---|---|---|---|
| 40051000 | 9 | 千克 | 与碳黑或硅石混合未硫化的复合橡胶，初级形状或板、片、带 | Rubber compounded with carbon black or silica, unvulcanized |
| 40052000 | 9 | 千克 | 未硫化的复合橡胶溶液;40051000以外的分散体 | Rubber solutions; dispersions, unvulcanized, nes |
| 40059100 | 9 | 千克 | 其他未硫化的复合橡胶，板、片、带 | Plates, sheets&strip of unvulcanized, compounded rubber, nes |
| 40059900 | 9 | 千克 | 其他未硫化的初级形状复合橡胶 | Compounded rubber, unvulcanized, in primary forms |
