China National Standards

China 3：Welding GB Standards List

  •  China "3：Welding" GB Standards List:
    • Standard  Code Standard Title Standard Class Order
    GB/T 37400.3-2019 Heavy mechanical general technical specification—Part 3：Welding parts
    重型机械通用技术条件 第3部分：焊接件    		 China National Standards
    3：Welding
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