Carving is a kind of surface treatment technology similar to screen printing. It is often used to make logo. In the case of more varieties or sizes, laser engraving can be considered and laser is the principle of laser processing. The high intensity laser beam emitted by laser is focused on the oxidation point of the material and processed. The role of marking is to mark or mark by the evaporation of materials or through light energy to cause chemical physical changes or to burn out part of the material through material, engraving marks, or through light energy, or to burn out part of the material through light energy, showing graphics, characters, etc.