美利体育登录入口官网:DIN ISO 22826:2008-08 金属材料焊接接头的破坏性试验 激光和电子束焊接的窄焊缝硬度试验(维氏和努氏硬度试验)(ISO 22826:2005)
Destructive tests on welds in metallic materials - Hardness testing of narrow joints welded by laser and electron beam (Vickers and Knoop hardness tests) (ISO 22826:2005)