About

Ningbo Rolling Stone Motion Controltek Co., Ltd (RSK) was established by Taiwan Controltek INT'L co, Ltd (CTK) in 2001. RSK specializes in rolled ball screw and is the leading manufacturer in China. We have complete production and inspection equipments. We produce rolled ball screws of accuracy 5, 7 and 9.



RSK Values

Professional, Respect, Innovation, Sustainable



RSK Goal

To become the leader of rolled ball screws in China, to contribute to the development of China industry and to serve the world.