[KongchangAI]
Unverified82% confidenceDecision RuleTime unknown

烫金包装纸的金层持久性看电化铝箔工艺:真空镀铝烫金膜耐磨性优于普通印金,用指甲反复刮擦20次不掉色的为合格;印金(油墨仿金)成本低但存放3个月以上易氧化发暗

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