... 1.Material:99% Alumina 2.Wear resistance, 3.High mechanical strenght 4,Custom design 5,Eco-friendly FeatureAlumina Ceramic has the advantages ... and high intensity ceramic assembly apply to petroleum ,chemical and chemical industry. 4,Wearlesness, corrosion resistance parts apply to precision ... , Perpendicularity and other specification are upon your requirements. 99%Alumina ceramic mechanical parts