In fact, the dominant technology for direct part marking (DPM) is the use of lasers, especially for smaller metal parts and other non-metallic materials such as screws, PVC pipe, wire, glass, and so on. In addition, laser marking can be used to create easy-to-read warning labels. In addition to desktop and stand-alone machines, we also have a wide range of portable laser marking machines that allow our customers to work anywhere, anytime.Quiet: laser marking of metal also generates noise, especially deep engraving, but this is negligible compared to the peen marking process;Accuracy: Laser marking can mark metal in extremely small sizes, such as 3.7*3.7mm Data Matrix code or 0.03mm line width characters, which are impossible for peen marking; Visibility: Using MOPA fiber or UV laser for laser annealing instead of engraving for black or other color marking on metal workpieces with high contrast.