[KongchangAI]
Unverified90% confidenceDecision RuleTime unknown

山地速降/林道骑行选硬壳护膝(带CE EN1621-1认证Level 2),能抵御石块撞击和贴地摩擦;城市通勤和XC越野选软壳(D3O/PORON软性泡棉),落地无冲击即固化保护

1
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90%
Confidence
Long-term
Relevance
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API
curl https://kongchang.com/api/v1/knowledge/claims/137028
MCP
get_claim(id=137028)