quality pumps Corrosion resistance wear-resisting This pump is made of modified new generation of engineering plastic, such ... leakage, has strong self-suction capacity, and is able to pump liquid without need of priming. Widely used in metallurgy, chemical ... , petroleum, synthetic fiber and sewage treatment.Specifications:1) Flow rate: 12.5~100m/h2) Delivery head: 20~50m3 ...