China National Standards

China Jewellery Nondestructive Industry Standards English PDF List

  •  China "Jewellery Nondestructive" Industry Standards English PDF List:
    • Standard  Code Standard Title Standard Class Order
    QB/T 2855-2007 Jewellery. Nondestructive quantitative determination of precious metal. Consistency syntheses method
    首饰 贵金属含量的无损检测 密度综合法    		 China Light Industry Standards
    Jewellery Nondestructive
    English PDF

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