Unverified75% confidenceFactTime unknown
承重标称需覆盖猫体重的3倍以上以承受奔跑冲击力，塑料一体成型转轮长期高速使用易出现轴心磨损异响，金属轴+木质/复合板轮身耐用性更佳
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75%
Confidence
Long-term
Relevance
-
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