【High Quality Material】High quality Laser Focal Lens use PVD ZnSe cystal material, resistant to high temperature, excellent optical properties,up to 90W CO2 laser resistance.
【High Transmittance】PVD Znse Laser Foucs Laser Lens both sides strongly antireflective coating achieve a 99.9% Laser Transmittance rate, 10% Higher Work Efficiency.
【Lasting Durability】This laser focal lens with superb double-sided solid coating, wiping resistance, longer working life.
【Wide Compatibility】This 20mm laser focal lens can be used in your 30w-90w CO2 laser engraving and cutting machine , K40 Laser Mirror replacement for more accurate and efficient production.