The motor drives the sponge or wool polishing disc mounted on the polishing machine to rotate at a high speed. The polishing machine manufacturer cooperates with the polishing disc and the polishing agent to rub against the surface to be polished. The polishing machine is designed to remove paint contamination, oxide layer and light mark. the goal of. The speed of the polishing machine is generally 1500-3000R/min, mostly for stepless speed change. The polishing machine equipment can be adjusted at any time according to the needs. The motor drives the sponge or the wool polishing disc mounted on the polishing machine to rotate at a high speed. Because the polishing disc and the polishing agent work together and rub against the surface to be polished, the material of the polishing machine can thereby achieve the purpose of removing paint contamination, oxide layer and shallow marks. The rotation speed of the polishing disc is generally 1500-3000R/min, mostly infinitely variable speed, and can be adjusted at any time according to the needs during construction.