In the year 1990s, the lens industry of China began to develop, and a large number of glasses companies sprouted in China. With the popularization of plastic lens in 1998, we transformed to develop the lens mold for various famous plastic lens manufacturers of China. As is known to all,the core technology of lens is lens mold. In the following years we produced aspheric and progressive mold. https://www.crystal-optical.com/
