China National Standards

China diagrams macrostructure defect GB Standards List

  •  China "diagrams macrostructure defect" GB Standards List:
    • Standard  Code Standard Title Standard Class Order
    GB/T 1979-2001 Standard diagrams for macrostructure and defect of structural steels
    结构钢低倍组织缺陷评级图    		 China National Standards
    diagrams macrostructure defect
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