Shearing: A processing method that utilises mechanical force to cut metal materials to a desired size. It consists of two types of shearing: flat shearing and mitre shearing, and is suitable for producing sheet metal with straight edges. Stamping: through the mould on the metal plate pressure, so that it produces plastic deformation, to obtain the desired shape of the processing method. It includes a variety of operations such as bending, stretching, punching, etc., and is suitable for the production of complex shaped metal parts. Bending: A processing method in which a sheet of metal is bent to a certain angle along a predetermined line. Completed by hand or mechanically, it is suitable for producing metal parts with a certain bending angle.