China National Standards

China Service Specifications Traceability GB Standards List

  •  China "Service Specifications Traceability" GB Standards List:
    • Standard  Code Standard Title Standard Class Order
    GB/T 42438-2023 Service Specifications for Traceability System of Jewelry and Jade {译}
    珠宝玉石追溯体系服务规范    		 China National Standards
    Service Specifications Traceability
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