... Hydrostatic/ Ultrasonic/ Intergranular Corrosion or according to customers' requestApplication For use in the Petroleum, Smelting, Foodstuff, Power, Papermaking, Chemical, Medical ... and torsion strength in the same level ,the pipes are in light weight,which can be used in machine elements ... tube and section tube .We can supply you the common types for stockist,and also can supply special size with your ...