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我厂用结构简单的钻模加工箱体类工件圆孔周围的孔,效果较好。钻模体3(见图)的尺寸视工件而定,材料可用45钢。钻模体3要铣三个
I plant with a simple structure of the box processing box-type workpiece hole around the hole, the effect is better. Drill body 3 (see photo) size depends on the workpiece, the material available 45 steel. Drill body 3 to milling three