... trunnion and the pot body, the trunnion's material is 25 steel and the pot body's materila is ZG230-450 ... body-casting, trunnion-forging3.material:pot body-ZG230-450, trunnion-25 4.MT, UT5.heat treatment6.exported to MexicoMechanical property of ... , 70% before shipment casting part pot body-ZG230-450, trunnion-25