Fiber Laser Marking Machines series use laser beams to mark permanent surfaces of various substances. The effect of the marking is to reveal the deep material through the evaporation of the surface material, thus engrave the exquisite designs, trademarks and texts, it can be used for marking logo, serial number, bar code and other beautiful patterns on any metallic materials such as stainless steel, titanium, brass, gold, silver, aluminum and lots of engineering plastic products such as mobile cover & charger, consume electronics housing and etc. http://www.riselaser.com/laser-...ser-marking-machine.html