... : QJ, QJT submersible pump for deep well is a major, important equipment for deep well water-lifting. It is applied in deep well, river, reservoir ... , pump shaft, bearing, check valve and valve body. Submersible motor: stator, rotor, upper/lower guide bearing, thrust ... iron/tin bronze Pump casing: cast iron/stainless steel Pump shaft: chromized steel/stainless steel Motor sealing: rubber seal/O ring/ ...