Xi'an Shew-E Steel Pipe Co.,Ltd is one of the leading st52.4 precision tube suppliers and also a famous such manufacturer, equipped with many professional st52.4 precision tube factories, welcome to purchase high quality st52.4 precision tube from our company.Standard: DIN2445-2Materials: St52.4Technical: cold-draw Application: used in the hydraulic cylinder of the Heavy Machinery, Cranes, Excavator and Forklifts.Tolerance：