[KongchangAI]
Unverified85% confidenceDecision RuleTime unknown

推拉门窗滑轮优先选不锈钢轴承轮或尼龙包胶双轮,纯尼龙单轮承重通常<40kg且3-5年易磨损卡顿,双轮结构承重可达80kg以上

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