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China Jewelry Gold Alloy C GB Standards Search Result

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GB/T 43589-2023
Gold alloy jewelry, multi-element content determination, laser ablation-inductively coupled plasma mass spectrometry
金合金饰品 多元素含量测定 激光剥蚀-电感耦合等离子体质谱法 - 英文版
GB/T 43447-2023
Jewelry Gold Alloy Colors Definitions, Color Ranges and Nomenclature
首饰 金合金颜色 定义、颜色范围和命名 - 英文版

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