[KongchangAI]
Unverified85% confidenceDecision RuleTime unknown

镀金层厚度直接决定耐用度:普通电镀(0.1-0.5微米)几个月褪色,真空镀(2-3微米,即PVD/包金K金)可维持2-3年不掉色,选购镀金款需确认标注'PVD'或'厚镀'

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85%
Confidence
Long-term
Relevance
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Stable URI
https://kongchang.com/claim/105680
API
curl https://kongchang.com/api/v1/knowledge/claims/105680
MCP
get_claim(id=105680)