We can supply you CR-39 1.499 UC, HC, HMC, HMC EMI, BIFOCAL, TINTABLE with diameter of 60mm, 65mm and 70mm for plus and minus.
1. Refraction index N=1.5 2. ABBE VALUE 59 3. DENSITY 1.31g/cm3 4. High scartch resistance 5. New designed products slim and thin 6. Super-hard protection coating acailable 7. Tintable to various fashionable colos