Mechanical polishing is to remove oxides from the surface of chrome-plated rollers through mechanical force. This method is simple to operate and can quickly remove surface oxides and restore the finish of the roller.

During the electroplating process, if the thickness of the chrome layer is uneven, the weak part will become a stress concentration point, which is prone to cracks during use. This situation is particularly common at the edges or concave and convex parts of the roller.