... and precision geometric 3. Competitive price Product NamePowder Metal Parts for Hydraulic PumpRaw MaterialsSupport layer: steel plate, Face layer: bronze powderFeature1. ... mm4. Parallelism: 0.015 mm5. Higher presicion in geometricApplicationGear pump,Oil pump, Crescent gear pump, Double gear pump, Plunger pump, Multi ... at your convenient time!Best Wishes!Mary Powder Metal Parts for Hydraulic Pump