China National Standards

China Jewellery Fineness precious GB Standards List

  •  China "Jewellery Fineness precious" GB Standards List:
    • Standard  Code Standard Title Standard Class Order
    GB 11887-2012 Jewellery - Fineness of precious metal alloys and designation
    首饰 贵金属纯度的规定及命名方法    		 China National Standards
    Jewellery Fineness precious
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