... guaranty CE,ISO approved 3D dioed laser crystal inner carving machine, 3d photo crystal carving machine, crystal 3D laser photo machine, crystal inner ... is designed and developed by Argus, with the character of high quality and low cost, and it is specialized ... x 80 mmLaser wave length532nm Laser power stability±3%Photo-acoustic Q-switch2-5kHzMarking Speed3000 points/secLifecycle20,000 hrsOverall ...