A technical report published by Timesaversint International Co., Ltd. of the Netherlands in 2010 introduced the company's use of wide belt grinding process to conduct large cutting volume tests on flat workpieces, and valuable information. There are some mature technologies in the world today about the process of removing materials from a plane. Each technology has its own characteristics, which depends on the required production capacity, surface roughness requirements, the size of the material remaining to be removed, and The difficulty of processing materials and other factors.