Pressure vessel: Material: austenitic stainless steel, 16MnR, 20R, 304, 321, 316L / cladding plate,carbon steel. Custom design condition. It is mainly used for hydrolysis, neutralization ... ) Material: austenitic stainless steel, 16MnR, 20R, 304, 321, 316L / cladding plate,carbonsteel,etc.2) Custom design available;