Unverified92% confidenceDecision RuleTime unknown

空心隔墙（石膏板/轻钢龙骨）安装搁板必须使用专用飞机型膨胀螺栓或蝴蝶锚栓，普通塑料膨胀管在空心墙中几乎无有效承重，易整块脱落

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Unverified空心砖、石膏板隔墙打孔应使用专用飞机型/蝴蝶型膨胀锚栓，普通塑料膨胀管在空心结构中抓力不足会松脱94% similar Unverified空心墙（石膏板隔墙、轻钢龙骨墙）安装置物架必须使用飞机型/蝴蝶型空心墙锚栓或找准龙骨位置固定，普通膨胀螺栓在空心墙内会直接拉脱93% similar Unverified石膏板/空心墙不能直接打普通膨胀螺丝，须用飞机型或蝴蝶型石膏板专用锚栓，否则重物会连锚栓一起被拉出91% similar

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