Ningbo Sedsun Vibration Damper Co., Ltd. is a high-tech enterprise，focusing on torsional vibration damper design, R&D development, and manufacturing of front end dampers: rubber damper, viscous damper and leaf springs damper, engine rear-end hydraulic damper, diaphragm coupling, leaf spring coupling, carbon fiber coupling, as well as rubber vibration isolation pad, high elastic coupling.
The R & D team is led by senior professor-level researchers majoring in engine vibration and noise in China.