Unverified88% confidenceCautionTime unknown
免打孔伸缩杆（撑杆式）单侧承重通常仅3-5kg，只适合窗幔、纱帘或宽度＜1.5m的轻质窗帘；遮光窗帘因面料厚重（约0.4-0.6kg/㎡）易导致伸缩杆下坠或脱落，2m以上遮光帘必须用打孔固定的罗马杆或轨道
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88%
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Long-term
Relevance
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Unverified免打孔窗帘（伸缩杆/免钉支架）单侧承重上限约3-5kg，仅适合宽度≤2米、克重轻的薄纱或半遮光布；宽度＞2米或全遮光厚布必须打孔安装或用罗马杆固定，否则易脱落或中间下垂95% similarUnverified弹力免打孔窗帘杆（顶伸式）适合窗框内侧安装，两端顶在墙面凹槽内，承重通常仅3-8kg，只能挂轻薄纱帘或半帘92% similarUnverified免打孔杆整体承重上限普遍不超过8-10kg，若窗帘宽度超过2米需分段挂或用多个粘贴支座分担，单杆跨度过大中间会下垂92% similarUnverified免打孔（顶部胶贴/窗框卡扣）承重上限约2-3kg，仅适合宽度≤1.5m、高度≤2m的中小窗；超过此尺寸或电动卷帘必须打孔固定，否则易脱落91% similarUnverified免打孔伸缩杆承重有限（一般≤5kg），不建议用于加厚遮光布或大窗，重帘会导致杆子下垂脱落90% similar
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