Etching is a process of using chemicals to remove some areas of a metal surface, creating a pattern or design. The patterns are finished by applying an electrochemical technique, which is using a protective film of acid resistance to partially cover thesurface of the metal. The exposed areas are etched by acid to remove a thin layer of metal, the surface becomes dull and matte, and the concealed areas are protected by the film and retain their original condition, the non-etch areas can be finished with some specified colors before or after the etching process. Such a contrast creates a stunning pattern, which can be designed as a specified effect. The etched metal sheet is an ideal material for decoration purposes such as wall cladding, ceilings, furniture,elevator interiors, and more.