| 摘要 |
A repair body for damaged vehicle tires includes a stem portion and a patch portion. The stem is of uniform cross section over the largest part of its length and is larger than the canal-like injury which it fills. At the juncture or transition section of the stem and patch the stem is tapered or recessed. Additionally, the stem is made of a plurality of layers or varying hardness arranged spirally or concentrically about the stem axis.
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