| 摘要 |
PURPOSE: A vehicle tire with an improved groove bottom is provided to inform the exact residual service life of a tire of a user by preventing tire from being determined as use impossibility although the tire can be used. CONSTITUTION: A vehicle tire with an improved groove bottom comprises a tread(1), a sidewall, and a groove(2). The sidewall is formed at both ends of the tread. The bead portion is installed at the end of the each sidewall. The groove is installed on the tread. The center part of the bottom of the groove is formed lower than a deck line(L) at 0.05-0.1mm.
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