Unverified88% confidenceCautionTime unknown
顶天立地支撑杆依赖天花板反作用力,若天花板为轻钢龙骨石膏吊顶(非现浇混凝土),撑力会压塌吊顶失效,此时应改用膨胀螺丝L型角码固定到墙体承重结构
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88%
Confidence
Long-term
Relevance
-
First Seen
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