Unverified74% confidenceDecision RuleTime unknown
承重使用场景（如做地台、置物层）PVC发泡板需选实心或高密度型（密度≥0.6g/cm³），低密度发泡板长期承压会永久凹陷变形
1
Sources
74%
Confidence
Long-term
Relevance
-
First Seen
Sources
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