Unverified60% confidenceCautionTime unknown
膨胀螺栓仅适用于实心墙体(混凝土、实心砖),空心砖、加气块、石膏板墙上安装会因膨胀套无法有效撑开而失效,此类墙体应改用中空墙锚栓或化学锚栓
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60%
Confidence
Long-term
Relevance
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