Sinotech Optics Co., Ltd. was established in 2004, committed to the development and production of high-quality optical instruments, the company has more than 90 experienced skilled workers, with high precision optical and mechanical processing equipment, the main products exported to Germany and the United States. In order to better control product quality and reliability, all key components are processed in our company using high-precision imported CNC lathes and machining centers. All optical lenses are processed and produced by our experienced technicians, and all technical parame (less)