1.Professional manufacturer 2.Powder metallurgy part for hydraulic pump 3.High density 4.Steam treatment Product NamePowder Metallurgy Part, Gasket (Washer) for Multi ... than HB704. Close tolerance and neat appearanceApplicationGear pump, Oil pump, Crescent gear pump, Double gear pump, Plunger pump, Multi-way valveProcessingMixing powder——Forming——Sintering——Sizing ...