Shanghai Hengxiang Optical Electronics Co.,Ltd is a professional manufacturing corporation,main operation includes research and development of rotary encoder, the manufacture of optical lens, etc. Also, we can design production of optics,mechanics and electronics for clients, according to their special requirements. Since been develped and expanded for so many years, our rotary encoder has already have 20 series and including more than 100 sorts, and exported around the world .Rotary encoder is widely used in automatization field, for example, tobacco machinery, water conservancy equipment, electrical equipment, textile machinery, woodworking machinery, injection molding machinery, rubber tooling, medical equipment, numerical control machine,metallurgical machinery,printing machinery,testing machine,lift,electric machine, food packing machinery, etc, and we have got trust and good reputation from clients .Our main production include rotary encoder, grating coded disk, encoder component, germanium ball, germanium grain,optical fiber, filter, lens etc.'Meeting client's requirement, creating social value' is our goal; providing reasonable advice for client is our pursuance, let us cooperate with each other and create interest for both sides for the future !