Ningbo Rolling Stone Motion Controltek Co.,Ltd. is a professional Manufacturer. Our main products series include Lead Screw,Precision Ball Screw,Ball Screw Nuts,Precise Ball Screw,Grounding ball screw,ball screws,C7 ball screws. Most of our products have obtained International Approvals like ISO9001 etc. With the advanced production facility, strong technical ability and professional production capability, we're sure that we can supply customers with the high quality and best design.Main Export Markets:North America, Western Europe, Eastern Europe, South America, Southeast Asia, Eastern Asia, Mid East, Oceania, Africa.