... .PUMP PARTS2.SAUER SERIES3.MODEL:PV22,PV23 control valve1:we are manufacturer ,not retailer , ... lower than others . 2:we want to expand our brand to all the world ,so wour quality is ... OEM and after market 4. our comany parts apply to excavator ,earthmover,reduction gears industry 5. Hydraulic Pumps ... some Swing & Travel motors spare parts . PV23 control valve high pressure pump parts sauer pump parts