Hydraulic Pump, Hydraulic Motor, Hydraulic Part manufacturer / supplier in China, offering Hitachi Zx670-5b Zx670lch-5A 4651137 9313703 Yb60000217 Swing Gearbox, A4fo180 Pump Rexroth A4fo180 Fixed Axial Piston Pump Sizes 22 and 28– Nominal Pressure 400 Bar– Maximum Pressure 450 Bar Sizes 71 to 500–, 199-4539 333-2959 E330d E336D Excavator Parts Swing Gearbox and so on.