标 准 编 号:GB/T 9074.11-1988简体中文标题:十字槽凹穴六角头螺栓和平垫圈组合件繁体中文标题:十字槽凹穴六角头螺栓和平垫圈组合件English name :Cross recessed hexagon bolt with indention and plain washer assemblies...