QY,QS Series Oil-immersed Diving Pump Compact structure High performance and Energy efficiency Best quality with best price QY,QS Series Oil-immersed Diving PumpQY,QS Series diving pumps are a newly device of electric drainage and irrigation equipment and compose of water pump,oil-immersed or submerged three-phase asynchronous motor.and main features,such as,Compact structureHigh ...