Polishing is the use of all kinds of grinding head polishing machine, high speed rotation of the technological process of the processing on the surface of the ceramic products. Polishing process include: grinding, leveling in the coarse grinding, grinding, fine grinding, polishing and grinding side and the edge. And abrasive used: the above each working procedure in addition to the grinding with diamond leveling, the rest are used in a variety of silicon carbide powder fineness. The need when polishing in working face blunt water cooling, to take away the face of a large amount of heat, prevent products burst. After polishing and drying, wax or other coating surface, to enhance its ability to resist pollution, improve gloss of the product.