| 摘要 |
PURPOSE:To facilitate demounting and permit reutilization without breaking a flap by forming unevenness on the tube contact surface of the wing part of a flap for tire. CONSTITUTION:The unevenness in aventurine pattern is formed on the tube 2 side of a flap 3. Since the flap 3 is prevented from being closely attached onto the tube 2 side because of the unevenness, the flap 3 can be demounted in simple ways without being broken. Therefore, reutilization is enabled.
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