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Material Polycarbonate Refractive Index 1.59 Abbe Value 32 Specific Gravity 1.20
1. Less Distortion2.Super Light and Thin3.Super Impact Resistance4.Super Scratch5.Inherent UV Protection6. Anti-Refraction7. Electric Magnetic Interference1.59 Polycarbonate Flat top bifocal semi-finished lens(CE, ISO9001. FDA and Factory Audit)