... ,Diameter:50mm 3,Length:1000mm 4,Used for laser cutting,non-metal materials,etc 30w co2 tube specification: We produce sealed CO2 ... laser tube 20W, 30W, 35W, 40W, 60W, 65W, 80W, 100W, 120W, 130W,150W,200w ... with excellent quality. Nantong Bil Laser DevicesCo.,LTD is specialized ...