气焊、手工电弧焊及气体保护焊焊缝坡口的基本形式与尺寸
Basic forms and sizes of weld grooves for gas welding，manual arc welding and gas-shielded arc welding
标准状态
发布于：1988-06-25
实施于：1989-03-01
已废止
基本信息
内容预览
Basic forms and sizes of weld grooves for gas welding，manual arc welding and gas-shielded arc welding