标 准 编 号：DIN 1912-1-1976 简体中文标题：焊接.钎焊图样表示法.焊接接头.焊接坡口及焊缝的概念与名称繁体中文标题：焊接.钎焊图样表示法.焊接接头.焊接坡口及焊缝的概念与名称English Name：Graphical Representation of welded,soldered and brazed joints - Definitions and terms for welding joints,edges and welds...