China National Standards

China 7：Repair GB Standards List

  •  China "7：Repair" GB Standards List:
    • Standard  Code Standard Title Standard Class Order
    GB/T 37400.7-2019 Heavy mechanical general technical specification—Part 7：Repair welding for steel castings
    重型机械通用技术条件 第7部分：铸钢件补焊    		 China National Standards
    7：Repair
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