RP vessel is made mainly of fiberglass reinforced plastics,stainless steel,engineering plastics etc.The working pressure range is usually from 150psi ( 1.0Mpa ) to 1000psi (6.9Mpa ),and the system in middle and high pressure adopts mainly FRP vessel.For the FRP vessel with ROM,fabric winding processing method can be adopted,so that the vessel is at the best state under working pressure,giving full play to the structural performance of the vessel.