... Diameter:80mm 3,Length:2050mm 4,Used for laser cutting,non-metal materials,etc "200w laser tube" specification ... It is widely used for Industrial Cutting, Laser Engraving, Laser industrial processing, Quencher, Cutting & Engraving on Leather, Laser Medical ... Machine, Infrared detecting, etc. Aplicable material: leather, cloth,glass, stone,acrylic ...