Unverified83% confidenceDecision RuleTime unknown
免打孔顶撑式挂杆的稳固性依赖弹簧张力+两端硅胶垫摩擦力,横向跨度超过1.5米时中间必然下垂,超过1.2米建议选带中间支撑脚或改用打孔固定式
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83%
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Long-term
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