... of the shaft 3, for engine driven pump and motor driven pumps this seal RM F is made by ourselves Wenzhou ... : carbon,ceramic, NBR,SUS3045, it can replace EH790 seal, the mechanical seal is suitable for high speed rotationthese seals are incorporated in ... purpose pumps and various types of industrial machinery. EH790 Mechanical seal for automotive water pumps,industral and general purpose pumps