High Quality CO2 Laser Mirror Lenses 1. Diameter 19/20/25mm 2. different focal length ... laser lens can stand high-power density, the film is firm, wipe resistance is great, transmittance of double-side antireflective coating film(10 ... , PV, CV-CXCX20-820mm/25mm7.5''PX, PV, CV-CX High Quality CO2 Laser Mirror Lenses