The MD type of multistage wear-resistant centrifugal pump is developed on the basis of advanced technology introduced, digested and absorbed by our company. The product is not only of high efficiency, good cavitation performance and the key is stable and reliable operation. The over current parts are treated with special technology, such as alloy wear-resistant material, friction pair and overflow clearance. It is suitable for coal, mines, factories and other occasions to transport neutral mine water and other similar sewage with solid particle content less than 1.5% (particle size less than 0.5mm), temperature not more than 40 degrees centigrade.