Polishing, as its name implies, is the process of polishing the surface of the semi-finished product calcined from the kiln to make its surface have a certain gloss. The product is shaped in this process. It needs to control the cutting quantity. The cutting quantity depends on the product. Infiltrated tiles are usually about 0.6mm. The gloss of polished products is required to be above 95 degrees. Defects in production are mainly diagonal lines, bent edges, uneven gloss or no light, corner collapse, and edge collapse. In addition to conventional polishing, soft polishing technology has appeared in recent years.