Changchun Yuheng Shidai Optoelectronics Technology Co., LTD which is a solely-invested National enterprise belonging to Changchun Yuheng Optics Co., Ltd. The SOE Co., LTD is a high-tech corporation devoted to the research , development , manufacture and trade of optical instruments , teaching - experimental apparatuses , sensors , displaying instruments , and more than one hundred kinds of other opto- electro-mechanical integrated products. Main product series: Precise Monochromators, Spectrometers, Optical Metric Instruments, Experimental Set-ups of Modern Physics, Microscopes, Sensors and Displaying Instruments, High-precision filter Also we can process high-precision mechanical product. The SOE Co., LTD is an enterprising and exploiting high-tech corporation approved to obtain ISO9001 Quality System Registration. Taking "Quality as primacy , users as God" as the tenet , The company is always innovating and making progresses , always improving both the products and services to all the consumers . either the old ones or the new ones. And you can see more information on our website http://*****/en or send me your inqury , we may introduce a new type for you. http://*****/ Changchun Yuheng Shidai Optoelectronics Technology Co., LTD Address:333 Feiyue East Road, Hi-Tech Industry Development District Changchun, China.130012 Tel:+86-431-85543800 Fax:+86-431-88614582 http://*****/en http://*****/