For some materials and objects that are uneven, uneven thickness, and do not meet the process requirements, physical removal methods such as abrasive cloth, grinding wheel, abrasive paper, non-woven sheet & polishing pad, etc., make them more smooth and flat, and the thickness is uniform. A method to make it meet the standard. It is used in the production of various veneer processes, the production of standard structural parts, the toy handicraft industry, the decoration and furniture industry, the floor and wall panel building materials industry, etc.