... 1.Material:99% Alumina 2.Wear resistance, 3.High mechanical strenght 4,Custom design 5,Eco-friendly FeatureAlumina Ceramic has ... resistance ,high temperature tolerance,precision process, high mechanical strength, good chemical stability,good smoothness, mechanical seal good, and so on.Property ItemsUnit95%Al2O399 ... and other specification are upon your requirements. 99%Alumina ceramic mechanical parts