... Pump is Energy Conservation : low noise ; leak-tightness; reasonable selection of materials;easy maintenance, manufacturer AY oil pumpAY-type oil pump ... :1. Its bearing body uses 45, 55, 70 bearing body instead of 35, 50, 60 bearing body, which is more reliable;2 ... is radially split type. It is suitable to the conveying of high-temperature, high-pressure, flammable, explosive, noxious liquid. Its ...