... home-made parts but all selected, quality assured.3. 4 laser heads, 2 gantries, high flexiblity.4. Industry Water-cooling ... . Technical parameters:TK-1612-4 laser engraving machineLaser-type Hermetic and detached CO2 laser tube Laser-power80W (60W,100W,130W for option ... connecting with a computer. Guarantee & after sales Service:1. Laser tube guarantees 3 months. While the whole machine guarantee for ...