This allows text and graphics to be deeply engraved into metal. Paint filling is optional. It is a high resolution process.
Pantograph engraving uses a stylus to mechanically engrave metal.
The engraving is shallow and limited in the type of text and graphics it can handle. Laser engraving removes an acrylic coating from the surface of metal, giving the impression of engraved metal. Pantograph and laser engravable metals are limited in type, thickness, and resolution. Acid engraving is typically used for indoor applications. There are exceptions.