[KongchangAI]
Unverified90% confidenceDecision RuleTime unknown

膨胀螺丝的钻孔直径应与膨胀管标称外径一致,M6配Φ8孔、M8配Φ10孔、M10配Φ12孔、M12配Φ14孔,孔深比膨胀管长10~15mm留容屑空间

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Long-term
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