... China supplier make quality ball screws 2.Precision degress C7 ball screw 3.Promptly finished rolled ballscrew China ball screw Keywords: China ballscrews, China ball screws, China ball ... 2040, 2505, 2510,4005, 4010 etc.Applications of China ball screw:IT industry, automobiles, household appliances, machine tools, ... order quantity As a professional supplier of China ball screw,we can offer SFU,DFU,SFI, ...