... machine 2.Water cooling system 3.Diode pump laser 4.CNC control Laser marking machineSampleTechnical parameters Input voltage:AC220V±20VFrequency: ... semiconductor light-emitting diode. diode laser module, scanner head, beam expander, reflect lens, Q-switch, Q-driver and other key parts ... jewelry, glasses, auto parts, telecommunications products, plastic buttons etc. YAG laser marking machine with CE