Unverified50% confidenceDecision RuleTime unknown
承重要求超过10kg（如挂重型工具、置物架、单杠）必须用膨胀螺丝安装，任何粘贴/免钉方案都不可靠；螺丝安装需匹配墙体，实心墙用膨胀管、空心砖用中空锚栓
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