[KongchangAI]
Unverified90% confidenceDecision RuleTime unknown

PVC穿线管应选择氧指数≥32的阻燃型(阻燃PVC),管壁标注有'阻燃'或'难燃'字样,普通给排水PVC管不可用于穿线(遇火助燃且释放毒气)

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Long-term
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curl https://kongchang.com/api/v1/knowledge/claims/384904
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get_claim(id=384904)