... D-GS Series with CE Keyboard Laser Marking MachineYAG laser marking machineStone Laser marking machineCeramic Laser marking machineLaser marking machine Feature Description:1 ... special surface treatment, ABS material, printing ink, epoxy resin,plastic,ceramic, stone, wood productsLaser marking machine Technical-parametersTYPEGS50laser output power50wWavelength1064Beam quality m2 ...