Shijiazhuang Zeyuan Optical Material Co., Ltd. has been the only professional manufacturer that can do the whole work from melting to processing color glass filters in China up to now. Since established over ten yeas ago, our company has been always insisted on the enterprise spirit of constant improvement, pioneering and striving forward, brave for innovation and persistence in development. For satisfying customers requests, our company can research, test and produce products as per individual requirements. There are advanced cutters and double-sided polishing equipment in our company. The...