Ningbo Rolling Stone motion controltek.Ltd (RSK) was established in 2001.As a subsidiary of Taiwan's contralto INT'L co, Ltd (CTK).We are specializing in the manufacture and export of C9, C7 Grade Rolled Ball screw and nuts.We have complete production and inspection equipments; also we have good experienced people to support you to make profitsRSK HistoryRSK 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 ValuesPROFESSIONAL, RESPECTFUL, INNOVATIVE, ETERNALRSK GoalTo contribute to the development of chinese industry and serve the whole world
