Unverified88% confidenceDecision RuleTime unknown

打孔安装需先判断墙体类型：实心砖墙/混凝土墙用膨胀螺栓承重可达15kg以上；空心砖或石膏板墙必须用专用飞机型膨胀管，否则单点承重不足5kg

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Unverified打孔式收纳架需匹配膨胀螺丝与墙体：实心砖墙/混凝土墙用普通尼龙膨胀管即可承重≥15kg，空心砖或加气块墙需用专用蝴蝶型/中空膨胀螺丝，否则会松脱91% similar Unverified标准膨胀螺栓（6mm）在实心混凝土墙单点承重可达15-25kg，但瓷砖面需先用玻璃钻头开孔避免瓷砖崩裂，且螺栓需穿透瓷砖打入基层墙体89% similar

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