Our YLM series CNC YAG diode-pump laser marker is made in china, mainly equipped with diode-pump semi-conductor module, high-speed scanner head, Q switch and YAG laser rod to ensure rapid and precise marking. It also has constant-temperature water cooling circulation system to ensure continuous long-time running. This CNC YAG lasr marking machine is suitable for precise etching and marking on both metals and non-metal materials, widely used in marking electronics, clocks & watches, eyeglasses, automobile parts, hardware tools, plastic keys, jeans buttons&belt buckle, etc. - See more at: http://www.yazcnc.com/laser-marker.html#sthash.UB9cCvA9.dpuf