Pumps for different purposes, different transport liquid medium, different flow range of lift, and therefore, its structure is not the same, of course, different materials are summed up, can be divided into: 
1, urban water supply two, three sewage systems, civil engineering, building systems 4, 5 agricultural water systems, power systems 
6, chemical systems 7, 8 oil industry systems, mining and metallurgy system 9, light system 10, Marine Systems