D,MDseries coal mine with a wear-resistant multi-stage centrifual pumps,MDF seriescoal mine with a wear-resistant and corrosion-restant multi-stage centrifugal pump,this type pump´s capacity from 20m3/h to 600m3/h,total head up to 600m,thay are widely used in water supply,the material can be cast iron cast steel or stainless steel,it can be driven by electrical motor or diesel engine,the type such as:D25-30*3~10,D25-50*3~12,D46-50*3~12,D85-67*3~9,D155-30*3~10,D155-67*3~9,D280-43*3~9,D280-65*3~10,D450-60*3~10,D550-60*3~10