According to the design requirements, specific paper and materials are processed and manufactured on a machine equipped with a steel knife stencil, and the paper or material is die-cut into the required shape and presents special effects in form. Such a process technology is called die cutting. The specific paper and materials are processed and manufactured on a machine equipped with a steel wire template according to the design requirements. The surface of the paper or material is printed with deep or shallow steel wire traces under pressure, and then folded by hand or machine. The paper And materials are easy to bend and form a certain form of structure or shape. Such a process technique is called indentation.