标 准 号:DIN EN 10305-5-2003 简体中文标题:精密仪器用钢管.技术交货条件.第5部分:焊接冷精加工方形和矩形钢管 繁体中文标题:精密仪器用钢管.技术交货条件.第5部分:焊接冷精加工方形和矩形钢管 English Name: Steel tubes for precision applications - Technical delivery conditions - Part 5: Welded and cold size square and rectangular tubes;