Unverified85% confidenceDecision RuleTime unknown
脚套底面磨损到防滑纹路基本磨平、或出现单侧偏磨露出内壁时必须立即更换，磨平后防滑力骤降是老人跌倒的常见隐患，建议室外使用者每3-6个月检查更换
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85%
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Long-term
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