标 准 号:DIN EN 755-9-2008 简体中文标题:铝和铝合金.挤压棒材/管材和型材.第9部分:截面、尺寸和形状公差 繁体中文标题:铝和铝合金.挤压棒材/管材和型材.第9部分:截面、尺寸和形状公差 English Name:Aluminium and aluminium alloys - Extruded rod/bar, tube and profiles - Part 9: Profiles, tolerances on dimensions and form;