China National Standards

China specimen—Part GB Standards List

  •  China "specimen—Part" GB Standards List:
    • Standard  Code Standard Title Standard Class Order
    GB/T 6060.1-2018 Surface roughness comparison specimen—Part 1: Casting surface
    表面粗糙度比较样块 第1部分：铸造表面    		 China National Standards
    specimen—Part
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