Ningbo Rolling Stone Motion Controltek Co., Ltd (RSK) was established by Taiwan Controltek INT’L co, Ltd (CTK) in 2001. It is located in 388 Jinda Road, Yinzhou Investment Center, Ningbo, China.
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.
Professional, Respect, Innovation, Sustainable are RSK Values. And, to become the leader of rolled ball screws in China and thus to contribute to the development of China industry and to serve the world is the goal RSK always pursues.
Ten years’ rapid growth enables RSK the ability to develop its own rolling tools and design and produce rolled ball screws of different specifications upon customers’ request.

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