Laser engraving machine: bamboo slips, wood, paper,jade, fabric,lether,shell, and the devil beans, signs, badge, in areas Laser Engraver uses flying optic ... the total price)(1)1 water chiller for cooling laser tube (2)1 air compressor for the laser head (3)1 exhaust blower (4 ... can be unlimited when 2 side door open. 2) Laser power: 60w CO2 laser tube (Water cooling, about 1500 working hours life)3) ...