... manufacturer 2. Bimetal parts for hydraulic gear pump and piston pump 3. Higher perfermance in material Product NameBimetal ... Parts for Hydraulic Gear Pump and Piston PumpRaw MaterialsSupport layer: steel plate, Face ... pump,Oil pump, Crescent gear pump, Double gear pump, Plunger pump, Multi-way valveProcessingMaterial: raw material bronze powder and ...