... 1.Material:99% Alumina 2.Wear resistance 3.High mechanical strenght 4,Custom design 5,Eco-friendly FeatureAlumina Ceramic has the advantages of ... pressure 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. Alumina Al2O3 ceramic bar