Shanghai QiYi Electrical & Mechanical Equipment Co., Ltd is a technology industrial enterprises integrating R & D, production, agency and sales. our company focus on the rotary encoders, displacement sensors and proximity sensor with CALT brand. We have many years of experience in supplying rotary encoders and sensors, which widely used in CNC machine, steel rolling machinery, linear guide systems, hydraulic systems, lifting machinery, turbine and other multiple industries. Located in Shanghai, we enjoy convenient air, water and land transportation. Currently, our company is exported to America, France, Mid-east, Africa and other more than 10 countries and regions. QIYI company has a strong technical team, a wealth of experience in field service, and effectively provide the right solutions and cost-effective products for customers, We are adhering to the concept "credibility first, customer first, win-win cooperation", forge ahead and strive to feedback to our customers with the highest quality products and services! We welcome potential buyers to contact us.