Unverified80% confidenceDecision RuleTime unknown
免打孔伸缩杆安装适合租房和轻质门帘，但承重通常≤3kg，加厚布艺门帘或金属珠帘超重会导致杆体下滑脱落，需用膨胀螺丝固定的挂钩
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Unverified免打孔伸缩杆承重通常≤3kg，仅适合轻薄纱帘或棉麻半遮帘；克重≥300g/㎡的加厚遮光门帘需打孔安装或使用顶天立地固定杆，否则易脱落塌腰92% similarUnverified免打孔安装（伸缩杆/魔术贴/门框胶贴）承重上限通常约3-5kg，超过此重量的加厚保暖门帘会下滑脱落，必须用膨胀螺丝固定的窗帘杆或杆托90% similarUnverified免打孔安装（张力杆/胶粘挂钩）承重通常≤3kg，仅适合轻质卷帘或短帘；铝合金百叶帘或大尺寸帘需膨胀螺丝打孔安装，瓷砖打孔需用玻璃钻头低速慢打防崩瓷90% similarUnverified免打孔窗帘杆的承重普遍偏弱，弹簧顶撑式（弹力杆）单杆有效承重通常仅2-5kg，只适合挂纱帘、薄棉麻帘；克重＞180g/㎡的遮光布帘务必选带侧边支架（免钉胶+L型托）的款式而非纯弹力顶撑88% similarUnverified遮光率越高的厚布重量越大，对伸缩杆承重和顶墙摩擦力要求越高；全遮光三层布在1.8米宽以上易导致伸缩杆下坠脱落，宽窗全遮光建议改用免打孔角码支架而非伸缩杆87% similar
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