[KongchangAI]
Unverified78% confidenceFactTime unknown

可冷冻真空袋需选低温不脆化的材质(PE或多层复合),普通薄款PVC在-18℃冷冻后易脆裂漏气,冷冻标注和耐低温说明应在包装明确标出

1
Sources
78%
Confidence
Long-term
Relevance
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curl https://kongchang.com/api/v1/knowledge/claims/454450
MCP
get_claim(id=454450)