1. Material: Korea NV55
2. Refraction Index Nd: 1.561
3. Diameter: 55/60/65/70mm
4. Abbe Value: 38
5. Coating Colour: Yellow green coating
6. Base Colour: Transparent (grey brown for photochromi…
Excellent scratch resistance;
New designed products, lighter and more beautiful;
Accurate and stable degree, transparent base color is easy to adapt;
HC and HMC coating are available;
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ECROBOT CO., Ltd, Business Registration Number : 220-88-71747, CEO J.W.Park, TEL : +82-2-552-7676, E-mail : E-mail : Contact us Address : (Hwanghwa B/D 11F, Yeoksam-dong)320, Gangnam-daero, Gangnam-gu, Seoul, South Korea