Unverified85% confidenceSolutionTime unknown
封堵管道/墙洞时，钢丝棉（不锈钢丝球）配合防火发泡胶比单纯塑料板更有效，钢丝棉能塞入不规则缝隙且无法被啃穿
1
Sources
85%
Confidence
Long-term
Relevance
-
First Seen
Sources
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