... original. Sauer PV of PV20,PV21,PV22,PV23,PV24 hydraulic axial variable displacement piston pump1. Heavy duty hydraulic piston pump2. ... . Widely applicable for agricultrual machinery, engineering machinery, mining machinery,industrial machinery, aviation and transport machinery etc.4. The hydrostatic hydraulic ... : Sauer PV of PV20,PV21,PV22,PV23,PV24 hydraulic axial variable displacement piston pump