1,10 years producer river gravel Pump 2,high chrome wet ... m 5,ISO,CE pass 1, centrifugal horizontal river gravel pumpa) Caliber: DN200-DN1000mmb) Flow:600-25000m3 ... suit kinds of working condition.f) Little hydraulic loss, high efficiency and low oil-consumptiong ... ) Little volume, light weighth) Steady operating, little vibration, low noisei) Simple & reliable ...