China National Standards

China materials—Rockwell GB Standards List

  •  China "materials—Rockwell" GB Standards List:
    • Standard  Code Standard Title Standard Class Order
    GB/T 230.1-2018 Metallic materials—Rockwell hardness test—Part 1：Test method
    金属材料 洛氏硬度试验 第1部分: 试验方法    		 China National Standards
    materials—Rockwell
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