ZnSe focus lens (zinc selenide mirror) is widely used in the CO2 laser processing industry, including laser cutting, engraving and marking, drilling, and other laser systems. Is laser engraved Zhang Ji, laser engraving machine, laser marking machine, laser cutting machine an indispensable accessory. Sales of the company's CO2 laser focusing lens materials used are from the United States imported zinc selenide (CVD), the low absorption rate of the material, the production of lenses can withstand the high power density, ratio and surface film firm, easy off, wipe.