... company has the advanced B-grade testing station of computer-controlled submersible motor pump, national 2-grade physical-chemical ... casing double suction centrifugal pump, MD mine pump, fire-fighting pump, QW series submersible sewage pump, DPB series dredge up ... The factory produce the submersible motor pump, mine pump, centrifugal pump and special use motor pump with large power (max.260kw), ...