... of specifications This type of pump has simple structure,,reasonable,,stable and reliable;maintenance advantages of convenience.25WG,70PW,100PW,150PWA,200PWA is ... fiber or other suspended solids in liquids For cities, industry and mining enterprises to exclude the use of sewage waste.Not ... use of oil seal ring Seal, Or asbestos rope packing, Reliable and durable(3) 150PWL pump on the pump there are two ...