ISO 3834-5:2021
金属材料的熔化焊质量要求. 第5部分: 有必要声明和ISO 3834-2、ISO 3834-3或ISO 3834-4质量要求一致的文件
Quality requirements for fusion welding of metallic materials - Part 5: Documents with which it is necessary to conform to claim conformity to the quality requirements of ISO 3834-2, ISO 3834-3 or ISO 3834-4