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刹车片摩擦层厚度磨损至约0.5mm（含金属背板总厚约3mm以下）应更换，磨到金属背板会严重损伤碟盘

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Unverified更换刹车盘时厚度必须大于盘面标注的最小磨损厚度（MIN TH，通常刻在盘缘），前盘一般新盘22-28mm，磨损超过2mm或到达MIN值必须更换而非车削80% similar Unverified铝合金挡风板板厚≥0.5mm才有足够抗弯刚性，0.3mm以下的超薄款在多节展开后容易被风吹弯变形甚至倒伏77% similar Unverified挡风板板材厚度0.3mm以下过软易被风吹弯变形，0.4-0.5mm铝板在轻量与抗变形间较平衡76% similar Unverified丁基橡胶止震板选面密度≥3.5kg/㎡（约2mm厚含铝箔）才有效衰减金属板振动，市面0.5-1mm超薄款基本无止震作用，只是隔热锡纸74% similar Unverified金属书立厚度≥1.5mm且底板长度≥7cm才能有效抵抗精装书倾倒，薄于1.2mm的钢板在放置3-4本精装绘本时容易向外弯折塌陷73% similar

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