... grade testing station of computer-controlled submersible motor pump, national 2-grade physical-chemical measurement and ... pump, ZJB slurry pump, OS and SH series split casing double suction centrifugal pump, MD mine pump, fire-fighting pump, QW series submersible sewage pump ... factory produce the submersible motor pump, mine pump, centrifugal pump and special use motor pump with large power (max.260kw ...