... .Material:99% Alumina 2.Wear resistance, 3.High mechanical strenght 4,Custom design 5,Eco-friendly FeatureAlumina Ceramic ... ,high temperature tolerance,precision process, high mechanical strength, good chemical stability,good smoothness, mechanical seal good, and so on.Property ... our product 1, Ceramic shaft for aquatic animals equipment filter pump 2, Ceramic plunger for high pressure cleaner. 3 ...