标准号:NF EN 4677-001-2013
英文标准名称:Aerospace series - Welded and brazed assemblies for aerospace construction - Joints of metallic materials by electron beam welding - Part 001 : quality of welded assemblies
标准状态:A
标准类型:国际标准
发布日期:2013-02-02
国际标准分类号:25.160.40%49.025.05