To make the surface of smooth and shiny by rubbing it.
Coating
A Layer of a substance that is spread over a surface for protection or decoration.
Plating
A thin layer of metal such as gold or silver, deposited or applied to a surface.
Deburring
To remove Burs from a work piece.
Milling
The operation of cutting, shaping, finishing, or working products manufactured in a mill.
Surface Treating
Any method of treating a material so as to alter the surface, rendering it receptive to inks, paints, lacquers, adhesive, and various other treatments, or resistant to weather or chemical attack.