标准编号:ISO 3439:2003
中文名称:直柄螺纹底孔阶梯麻花钻头
英文名称:Subland twist drills with cylindrical shanks for holes prior to tapping screw threads
发布日期:2003-09
标准编号:ISO 3439:2003
中文名称:直柄螺纹底孔阶梯麻花钻头
英文名称:Subland twist drills with cylindrical shanks for holes prior to tapping screw threads
发布日期:2003-09