... UC HC HMC EMI avaliable Bifocal Lens Index: 1.499 1.56 1.60 F LAT TOP, ROUND TOP, BLENDED BIFOCALfinished & ... according to Chinese customs statistics, we are No. 1 in terms of exporting lens quantity in China. We ... form, HI-VEX lenses, with index of 1.499, 1.56, 1.60, 1.67, both in finished and semi-finished. ... to demonstrate our quality service to you. CR39 1.56 1.60 Flat Top Bifocal Lens UC HC HMC ...