... resistance to impact High Temperature Resistant Yellow 99% Alumina / AL2O3 Ceramic Tubes Wear PartsDescription:1. Material: 99% AL2O3 (Cr/Mn)2. Method of molding ... mechanical,electronics,chemical,textile,aeronautic and other fields.Specifications:95%,99%,99.7% Al2O3 Material Parameters: ItemTest ConditionUnit Symbol95%Alumina ceramics99%Alumina ceramics99 ...