China National Standards

China 1:X GB Standards List

  •  China "1:X" GB Standards List:
    • Standard  Code Standard Title Standard Class Order
    GB/T 3323.1-2019 Non-destructive testing of welds—Radiographic testing—Part 1:X- and gamma-ray techniques with film
    焊缝无损检测 射线检测 第1部分：X和伽玛射线的胶片技术    		 China National Standards
    1:X
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