Profile: HeatSign specializes in providing marking machines. We offer a variety of high-precision product marking, traceability and turnkey process automation solutions. The primary function of any marking is readability, precision and clarity. The mark should not cause corrosion of the part. It should not lighten or weaken with time. Laser engraving machine and laser etching machine can be the same as the laser marking machine. But the processes of marking, etching and engraving differ. Laser Etching does not go deep. It involves creating a mark on the surface of the product by chemical corrosion or removing the protective coating of the surface. This results in a textured effect (like etched glass).