焊接质量保证 钢熔化焊接头的要求和缺陷分级
Quality assurance of welding--Requirement for fusion welding joint of steel and classification for imperfection
标准状态
发布于：1990-09-08
实施于：1991-10-01
已废止
基本信息
内容预览
Quality assurance of welding--Requirement for fusion welding joint of steel and classification for imperfection