[KongchangAI]
Unverified81% confidenceDecision RuleTime unknown

阻燃等级选B1级难燃橡塑(氧指数≥32%),穿越吊顶、墙体或靠近电气线路的管道保温尤其要认准B1级,普通B2级遇明火易延燃

1
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81%
Confidence
Long-term
Relevance
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