1,convinient,effective 2,more stable laser beam 3,long life time 4,DSP control system 5,CE ... it adopts the new high-efficiency laser tube, the laser beam is more stable than the traditional type,and the life ... /50w/60w/80w/100w/130w//150w/180w Laser type CO2 Sealed laser tube, 10.6μm Cooling type Water coolingEngraving speed0 ...