... is specially designed for the high efficiency hydraulic drive with open loop.1.Wildly applied for ceramic press, refractory press, steel, ... mine machinery, ship machinery, petroleum equipments, engineering and machine tool control.2.Pumping rate: 40, 71,125,180, 250, 300, ... bevel disc 4. Excellent sucking characteristic 5.Sensitive response control 6.The special designed long life and the high ...