It is used for the mechanical removal of substrate residues, particularly burr.

Mechanical procedure used to erode the most superficial part of a material through abrasion due to a jet of sand and air.

It means coating the metal with a very thin coat of chrome in order to protect it from browning and rust, making it bright and shiny with a “mirror” effect.

Coating normally has a dual purpose: decorative and protection against corrosion.