1. Special pressing method is used to overcome the strip distortion after drawing, trimming and bending.
2. The problems of product cracking and dezincification after drawing were solved by using reasonable material flow mode of piercing and drawing.
3. The problems of unstable positioning, uneven cutting edge and unsmooth pushing are solved after one-step cutting and bending.
4. It solves the problem of large hole position deviation caused by large product size and unstable stretch positioning, and meets the requirements of high hole position.
