الكريستال البصريات  شركات مصنعة، تجار، موردون، مزودو خدمات

Founded in 1998, Beijing Zhong Cheng Quartz Glass Co., ltd. (ZCQ) focuses on quartz glassware process and production. With customer first value and attention to detail, we strive to offer quartz products combining long years of production experience and state-of-the-art technology.
We try to fulfill customers requirements from every single step: confidential contract, production, inspection, packaging, payment, after sale services. Whatever customers require, we try to reach and help you realize.
With continuous efforts and dedication to innovation, quality control and customer services we at ZCQ meet even go beyond customers' expectations through supplying competitive pricing in mass production.

Optico AG was founded in 1987 and has since well established itself in the market. Our optical production for the industry has specialized to the production of high-tech parts, primarily in the segment of prototypes, small and mid-sized series. Optico AG is
characterized by a manageable, close at hand facilitated production, our creativity, dynamic approach and our diversifi ed skills