Unverified85% confidenceDecision RuleTime unknown
挂遮光/加厚窗帘（单幅湿重可达3-5kg）时，管径需≥25mm且承重标称≥10kg再打对折，同时避免选纯免打孔顶撑款，跨度超过1.5米建议打孔固定或加中间支撑
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85%
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Long-term
Relevance
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