1, constant-rising lens is 1.56 anti-radiation myopia lens, transparent colorless aspheric resin lens, which is strong and resistant to falling, and can effectively prevent accidental falling, which is very reliable.
2. Changsheng lenses are produced by Shanghai Changsheng Glasses Co., Ltd., which is mainly engaged in the production and processing of glasses, lenses and frames. Brand quality effect is very good, deeply loved by the masses.