ALDF Type SS Vertical Multistage Centrifugal Pump is multistage ... casing, impeller, shaft, etc.2.ALDG Type Vertical Multistage Pump is made of stainless steel casing ... , Urban water supply and pressure boosting 2, Industrial circulating system and processing system 3, Water supply ... analysis system 5, Agriculture irrigation and dewatering 6, Industrial building cleaning and other washing work 7, ( ...