... 159mm---7500mm thickness:4mm---200mm ISO9001-2008 Ellipsoidal dished ends,head ,cap:1.We own Asian unique production line which ... alloy steel,carbon steel,stainless steel,clad plate,etc6.The head's edge profile can be inside groove,outside groove ... used in many fileds,such as petroleum,chemical industry,boiler,pressure vessels,railway transportation,metal structure,water supply facilities and ...