Unverified90% confidenceDecision RuleTime unknown
顶装式伸缩杆(撑杆式)依靠两端弹簧顶住墙面,承重通常≤3kg,仅适合窗纱、门帘等轻薄布料;棉麻遮光帘(每米约0.8-1.2kg)超过2米宽必须改用侧装免打孔支架
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