We are an ophthalmic lens manufacturer based in China Mainland. We have: *Glass Bifocal -   Photo-chromic (n=1.523) flat-top -   UV white flat-top -   Photo-chromic (n=1.523) round-shape -   UV white round-shape (All above have semi-finished, finished, and Multi-coated) *Glass Single Vision   -  White single vision -  Photo-gray (n=1.523) Single Vision -  Photo-brown (n=1.523) Single Vision -  UV white Hi-index (n = 1.70) -  Brown Hi-index -  UV white Hi-cylinder (up to 4D) -  Photo-gray (n=1.523) Hi-cylinder (up to 4D) (All above have semi-finished, finished, and Multi-coated) *CR39 Lenses -  1.499 single vision, UC, HC, HMC+EMI -  1.56 single vision, HMC -  1.49/1.56 sv Hi-cylinder, UC, HC, HMC -  1.499 bifocal, normal white, HMC, round-shape and flat-top -  Photo-chromic single vision, 1.56, HC & HMC