... 800mm 4,Used for laser cutting,non-metal materials,etc 40w co2 laser specification: We produce sealed CO2 laser tube 20W, 30W, ... 35W, 40W, 60W, 65W, 80W, 100W, 120W ... processing, Quencher, Cutting & Engraving on Leather, Laser Medical Machine, Infrared detecting, etc. Products advantage: 1,Our co2 laser tube ...