| 摘要 |
1. A prevulcanized tread for recapping tyres having flanges which become applied on sidewalls of the tyre to be recapped, the tread being smooth or with a sculptured design, characterized by the fact that, in free state, it has a helicoïdal structure and by the fact that the diameter of the helix corresponds substantially to the diameter of the tyres to be recapped. |
