High quality Alloy 20 pipes: 1.Forging products: round bar, flange, ball, seat ring, etc. 2.we manufacture ... superior steel pipe Application: Valve, heat exchanger, turbine, et...Shape: ... according to requirement 2.Anti-corrosion and high-temperature resistant SpecificationsAlloy 20 Forging products: round bar, flange, ball, seat ring, ...