Purchase Qty. Reference FOB Price
1-499 pair US$10.00
500+ pair US$0.10
Product Description
SEMI-FINISHED 1.56 PROGRESSIVE LENS MATERIAL REFRACTIVE INDEX = 1.56 TOOLING INDEX = 1.530 Diameter Nominal Curve Front Radius Front Curve Rear Curve E.T C.T Front Sag Ring 50mm RX Range Recommened 75mm 100B 378.57 1.4 5 15 9 0.53 -3.25~-6.00 75mm 300B ...