美利体育登录入口官网:DIN ISO 24394:2013-12 航空航天应用中的焊接 焊工和焊接操作人员的资格测试 金属部件的熔化焊接 (ISO 24394:2008 + 修正案 1:2013)
Welding for aerospace applications - Qualification test for welders and welding operators - Fusion welding of metallic components (ISO 24394:2008 + Amd. 1:2013)