Optical Lens, Cr39 Lens, 1.56 Lens manufacturer / supplier in China, offering 1.591 Polycarbonate Lens PC Bifocal Flat Top Hc Optical Lenses, 1.591 Polycarbonate Lens PC Single Vision Shmc Blue Coating Optical Lenses, 1.591 Polycarbonate Lens PC Single Vision Hmc Blue Coating Optical Lenses and so on.