... by other glasses, which enables the laser device to send infrared laser under high voltage. It is widely ... for Industrial Cutting, Laser Engraving, Laser industrial processing, Quencher, Cutting & Engraving on Leather, Laser Medical Machine, Infrared detecting, etc.function ... used in beauty, gynecology and other area. Co2 Laser Tube: ModelLengthWorking LifeWorking Voltage(kv)Best Operating Current ...