Ningbo Rolling Stone Motion Controltek Co., Ltd.(RSK) was established in 2001.As a subsidiary of Taiwan's controltek INT'L co, Ltd(CTK).RSK' main business contains three portions:Part 1:manufacturing linear motion components , such as :ball screw and nut, rolled and ground, linear shaft units and slides. Part 2: importing equipments and mechanical parts from developed countries , such as:spindes, precision rotating unions, CNC controllers.Part 3: design and assemble actuator's control sysmems and special service valves , for applications inoil, petrochmical, chemical, power and water treatment industries. RSK History RSK was established in the industrial area of Meixu in Ningbo in 2001. RSK has built a new workshop in the investment of Yinzhou , Ningbo, and moved in in July , 2004. RSK has got the agency of deublin rotation unions for Southern China in Aug 2005, to support China 's CNC machine tool producer to upgrading their machines. RSK Values PROFESSIONAL, RESPECTFUL, INNOVATIVE, ETERNAL RSK Goal To contribute to the development of chinese industry and serve the whole world