1.high quality 2.large amount of products in store 3.offer the most reasonable price 4.quick delivery 5.best after-service We are a manufacturer which is special in ball screw for years.We can supply full range of SFU, DFU,SFE,SFT and DFT series ball screws. We can offer the products with high performance, cost effective, and precision for all applications. Ball screw are widely used in automatic ...