Unverified92% confidenceDecision RuleTime unknown
实心墙（砖墙/混凝土）必须用膨胀螺丝安装，每个固定点至少3颗M8以上螺丝；空心墙（石膏板/瓷砖夹层）需用中空墙专用锚栓或穿透至龙骨，严禁只用塑料膨胀管
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92%
Confidence
Long-term
Relevance
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Unverified膨胀螺丝安装要求墙体为实心砖墙或混凝土；空心砖、石膏板隔墙需改用中空锚栓（蝴蝶膨胀）或飞机型锚栓，否则会整块拉裂90% similarUnverified壁挂式挂架安装墙面材质决定固定方式：实心砖墙/混凝土墙可用膨胀螺丝承重，空心砖、石膏板或轻质隔墙必须用专用锚栓或穿透龙骨固定，普通膨胀螺丝在空心墙上几乎无承重力90% similarUnverified膨胀螺丝安装适合实心砖墙/混凝土墙，承重最高；空心砖或石膏板墙必须用专用空心墙锚栓，普通膨胀螺丝会脱落导致坠落90% similarUnverified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89% similar
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