High quality Alloy 20 pipes: 1.Forging products: round bar, flange, ball, ... manufacture superior steel pipe Application: Valve, heat exchanger, turbine, et...Shape: rod, disc, tube, and various partsMaterial: Nickel base alloyDimensions: N ... acc to customers requirement paint varnish coating,plastic caps and mark on the pipe,hexagon in bundle Applications rangeconstruction,chemical,gas,shipbuilding ...