... , torispherical, flat base Test: 100% UT Product: dished end/pressure headShapes : elliptic shape, dishing shape, conical shape, flat roof shape ... arched shape and boiler profiled shape. Material quality : stainless steel, pressure vessel steel, MA516-70, etc.Manufacture standard: American standard , European ... 0086 15998088057SKYPE: ms.helen_xiyida A516 or A36 dish end for pressure vessel for sale