China National Standards

China Specification identification copper GB Standards List

  •  China "Specification identification copper" GB Standards List:
    • Standard  Code Standard Title Standard Class Order
    GB/T 42915-2023 Specification for identification of copper concentrates and main copper-containing materials {译}
    铜精矿及主要含铜物料鉴别规范    		 China National Standards
    Specification identification copper
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