Product: dished end, pressure head, boiler cover Material: Q235, A36, A516 Shape: eliptical shape, oval ... : dish end or pressure vessel headShapes of the head: spherical head, concial head, elliptical head, flat base head, dished head, etc. Raw material : Q235,a515, A36 ETC ... skype: ms.helen_xiyida A516 /A36/Q235 dished end /pressure vessel head from Ms Helen