... Wear resistance 3.Anti-corrosion 4,Custom design 5,Eco-friendly,favourable price FeatureAlumina Ceramic has the advantages of super ... cleaner. 3,Wearlessness,resistant acid-base and high intensity ceramic assembly apply to petroleum ,chemical and chemical industry. 4 ... Concentricity, Perpendicularity and other specification are upon your requirements. Custom design Alumina ceramic hydraulic pump shaft