Polishing is the final process of the coating surface or part surface, the purpose of which is to eliminate the fine abrasion marks that remain on the surface after the polishing process. The ideal polishing surface should be flat, bright, no marks, no relief, no pits, no metal disturbing layer of mirror-like surface.
Hardware polishing is to obtain a bright mirror-like surface processing process. Most of the polishing wheels are used to repeatedly polish the surface of the parts after the very small uneven, commonly used in the coating surface modification.