Unverified85% confidenceDecision RuleTime unknown
真水晶(K9光学玻璃以上级别)与普通玻璃鉴别:真水晶折射率≥1.5,透光通透且棱角切割处有明显彩虹光晕;普通钠钙玻璃发绿、气泡多。定制礼品选K9料,内雕成像清晰度最高
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85%
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Long-term
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