20mm Replacement Focus Lens for 50W 60W 70W 80W Laser Engravers PVD ZnSe 2″ FL
HIGH-QUALITY PVD ZnSe: Our powerful focus lenses are manufactured from premium zinc selenium via physical vapor deposition for superior optical properties. WIDE COMPATIBILITY: This 20mm laser focus lens can be used in your 50W-80W CO2 laser engraving and cutting machine for more accurate and efficient production.