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2) Refraction index: 1.499

3) Abbe Value: 58

4) Diameter: 55, 60, 65, 70, 72,75 mm

5) Coating: UC, HC, HMC, EMI, AR.

6) Up-to-date surface curvature design, slim and thin

7) Semi-finished or finished are available

8)  Flat-Top,  Round-Top Bifocal Lenses  available.

9) Polarized, progressive lenses available

10)  Aspheric, spheric available. 

11)Preferentical price for grade A and grade B together.

12) Power range: 

a) Minus  Sph: Plano ~ -6.00 / Cyl: -0.25 ~ -2.00

b) Plus      Sph: +0.25 ~ +6.00 / Cyl: -0.25 ~ -2.00

c) RX          Cyl: -2.25 up to -4.00, -4.25 up to -6.00