Unverified50% confidenceFactTime unknown
日常耐用性看材质：925银易氧化发黑需勤擦拭，18K金(Au750)硬度适中不易变形适合日常，925镀金/包金(gold-filled)比普通电镀耐磨可用数年，普通合金电镀镀层易掉色变绿
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