Screw nut, driving nut Material: aluminum bronze; features: it is square in the middle and of eccentric cylinders on both sides. In addition, it is produced by once forming. -Application: applied as high-voltage electrical parts of the operating mechanism of high-voltage switch -As known as: driving nut, widely applied in the driving part of machine tools and equipment -Client Problem: the product is of special shape, thus it is difficult to be processed. -QH Solution: QH realizes once forming by precision forming process -Benefits: low cost and high efficiency