标 准 编 号:DIN 34823-2005 简体中文标题:12孔座的半埋头螺钉 繁体中文标题:12孔座的半埋头螺钉 English Name:Raised countersunk head screws with 12 point socket 上一篇: DIN 34824-2007 螺栓和螺钉用12孔座 下一篇: DIN 444-1983 吊环螺栓