China National Standards

China Steels classification 1: GB Standards List

  •  China "Steels classification 1:" GB Standards List:
    • Standard  Code Standard Title Standard Class Order
    GB/T 13304.1-2008 Steels classification - Part 1: Classification of according to chemical composition
    钢分类 第1部分：按化学成分分类    		 China National Standards
    Steels classification 1:
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