With the development of laser marking technology, the application of laser marking machine is more and more widely, the traditional charger identification is generally the use of printing technology, now the use of ULTRAVIOLET laser marking machine can also quickly complete the identification process, and the cost is lower, faster, more environmentally friendly.     General charger shell is plastic material, the plastic laser marking can use CO2 laser marking machine, fiber laser marking machine, but if you want to achieve fine marking effect, smooth hand touch and no touch effect, you need to use ultraviolet laser marking machine.