[KongchangAI]
Unverified85% confidenceDecision RuleTime unknown

购买镀金饰品选电镀层≥3微米(微米数厂家标注为3μm以上)或PVD镀层工艺,可保证日常佩戴2年内不明显掉色;普通镀金层0.5-1μm佩戴3-6个月即氧化发黑

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