Unverified90% confidenceCautionTime unknown
空心墙（石膏板/轻质隔墙）严禁使用普通膨胀螺栓，必须搭配蝴蝶型/翻转式空心墙锚栓，否则受力时螺栓会直接从墙内拔出，反而更危险
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