1) Refraction Index Nd= 1.499/1.56 2) Abbe Value: 38 3) Specific Gravity: 1.28 4) Diameter: 65, 70

1) Refraction Index Nd= 1.499/1.56

2) Abbe Value:  38

3) Specific Gravity: 1.28

4) Diameter: 65, 70mm

5) Coating: HC,HMC+EMI

6) HMC+EMI coating and UV protection are available

7) Package: white envelopes  or as customers' requirement

8) Semi-finished or finished are available