Both CNC and polishing are "cutting" the surface of the wheel hub to achieve a flat effect.But the difference lies in the scale range. If a CNC lathe can be processed at 0.1~1mm, then polishing is processed at 0.01~0.05.Because they have different depths of "knife marks" on the wheels, they have different flatness and different reflective effects. However, due to the insufficient processing depth ...
