Unverified85% confidenceCautionTime unknown
空心砖墙、石膏板隔墙不能直接用普通膨胀螺栓,需用中空墙专用锚栓(蝴蝶栓/飞机栓),否则拉力测试下易整体脱落,坠落在婴儿活动区风险极高
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