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黄色钻石分级
Yellow diamond grading
价格:¥0.00
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钻石分级
Diamond grading
价格:¥0.00
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珠宝玉石 名称
Gems.Nomenclature
价格:¥0.00
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石英质玉 分类与定名
Quartzose jade.Classification and nomenclature
价格:¥14.00
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珠宝玉石及贵金属产品抽样检验合格判定准则
Qualified judgement criteria of sampling inspection for gems and precious metal products
价格:¥16.00
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红宝石分级
Ruby grading
价格:¥0.00
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蓝宝石分级
Sapphire grading
价格:¥0.00
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独山玉 命名与分类
Dushan Yu.Denomination and lassification
价格:¥0.00
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观赏石鉴评
Appraisal for view stone
价格:¥0.00
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透明翡翠(无色)分级
Transparent jadeite(colorless) grading
价格:¥0.00
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