China National Standards

China Hardmetals—Rockwell GB Standards List

  •  China "Hardmetals—Rockwell" GB Standards List:
    • Standard  Code Standard Title Standard Class Order
    GB/T 3849.1-2015 Hardmetals—Rockwell hardness test(scale A)—Part 1: Test method
    硬质合金 洛氏硬度试验（A标尺）第1部分：试验方法    		 China National Standards
    Hardmetals—Rockwell
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