[KongchangAI]
Unverified87% confidenceDecision RuleTime unknown

安装方式与墙体判据:真正承重扶手必须打孔安装到承重实心墙或瓷砖后的水泥墙,膨胀螺栓需吃进墙体≥35mm;空心隔墙(轻质砖/石膏板)需加背板或用专用空心墙锚栓

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