[KongchangAI]
Unverified88% confidenceDecision RuleTime unknown

膨胀螺丝安装需确认墙体结构:实心砖墙/混凝土可用,但空心砖、轻质隔墙、石膏板墙必须改用专用中空锚栓(蝴蝶栓),否则膨胀管无法撑开导致脱落

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88%
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Long-term
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