Risun Expanse Corp., as a professional R&D and integration of machinery, electromagnetic, electronics into three main areas DC Brushless Motor technology company, not only has successfully innovated domestic first high-performance voice Coil Vibration ...

We are, Hong Kong enterprises, based being established in 1989, as well specialised Permanent Magnet DC motor, sub-assemblage of components and tools making. At present, we have also developed full-series production lines on PMDC motor newly Brushless ...