[KongchangAI]
Unverified80% confidenceDecision RuleTime unknown

边缘防塌陷通常靠加硬边框弹簧或高密度海绵围边实现:坐床沿时下陷<3cm、能稳定支撑说明围边合格;无围边设计的床垫坐边缘易塌,实际睡眠可用面积会缩水10-15cm,小尺寸床更需关注

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Long-term
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https://kongchang.com/claim/206415
API
curl https://kongchang.com/api/v1/knowledge/claims/206415
MCP
get_claim(id=206415)