KS B ISO 3834-5-2016(2021) 金属材料熔焊质量要求第5部分:要求符合ISO 3834-2、ISO 3834-3或ISO 3834-4质量要求所需的文件
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 38