Unverified90% confidenceDecision RuleTime unknown
承重需求＞5kg（如厨房锅具、书籍）必须选打孔膨胀螺栓安装，免钉胶/无痕贴仅适合≤3kg轻物，且瓷砖/大理石光滑墙面免钉胶实际承重要再打7折
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