[KongchangAI]
Unverified90% confidenceDecision RuleTime unknown

混凝土/实心砖墙推荐用金属膨胀螺栓(如M6/M8内膨胀),单颗M8金属膨胀在C25混凝土中拉拔力可达3-5kN,远高于塑料膨胀管的0.3-0.8kN

1
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90%
Confidence
Long-term
Relevance
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https://kongchang.com/claim/354758
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curl https://kongchang.com/api/v1/knowledge/claims/354758
MCP
get_claim(id=354758)