... small and light pump 3.low pressure pump 4.centrifugal impeller water pump manufacturera . Shijiazhuang Longwei Pump Co., Ltd. is ... desulfurization pumps, slurry pumps, dredging pumps, chemical pump and water pump. b. Application :This series pump is small and ... widely used in countryside for elevating water from well, irrigation, sprinkling and domestic water supply, and also used in draining ...