China National Standards

China frames—Requirement GB Standards List

  •  China "frames—Requirement" GB Standards List:
    • Standard  Code Standard Title Standard Class Order
    GB/T 38009-2019 Spectacle frames—Requirement and method for the detection of nickel release
    眼镜架 镍析出量的技术要求和测量方法    		 China National Standards
    frames—Requirement
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