We have various methods to produce laser marking.
Burn / Dark marked
Typical laser, economical.
Obscures the surface of the metal.
Frozen / marking
Matte marked economic.
Contrast on polished surfaces.
Annealing / color tempering
Laser frequency setting allows you to tune under the metal surface, which generates color on the metal surface. Depending on the temperature allows us to obtain different colors, black, blue, lilac, gold, copper or brown, only in Inox and steel. It does not affect the metal surface in any way, being the preferred method for marking surgical and food material.