... 4).Safely wooden packing.... co2 glass laser tubeCO2 Laser tube-It's special glass tube mainly contains CO2 complemented ... send infrared laser under high voltage. It is widely used for Industrial Cutting, Laser Engraving, Laser industrial processing, Quencher, ... Infrared detecting, etc.function:(1)industrial engrave and cut , medical(2)applicable material:leather, cloth,glass, stone,acrylic,wood,color ...