This product is made of superhard alloy or carbon steel through heat treatment, and is precision ground and polished using professional processing equipment. It has excellent bending strength and wear resistance, and is widely used for coil winding of motors, stators, and rotors in industries such as series excitation, fans, micro motors, and motors. It can be processed according to customer provided samples or drawings, and can be customized with single hole, double hole, and porous shapes, including flat, elliptical, and so on. The inner hole and arc part of the superhard alloy wire mouth have undergone multiple processes of fine grinding, achieving a mirror gloss. There are no scratches detected under a 120x magnifying glass, ensuring the safety of use. Various specifications can be customized and processed according to the winding situation of the user's product.