Left hand, right hand knead stuck invading. this within rims, force in all directions to push, if push felt too loose, is badly worn.
左手卡住外圈，右手捏住内钢圈，用力向各个方向推动，如果推动时感到很松，就是磨损严重。
Left hand, right hand knead stuck invading. this within rims, force in all directions to push, if push felt too loose, is badly worn.
左手卡住外圈，右手捏住内钢圈，用力向各个方向推动，如果推动时感到很松，就是磨损严重。
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