Alumina Ceramic Valve core, water valve,gas valve Ceramic valve for water,gas,oil and acid. Material: 95%Al2O3 Density: 3.6 ... molding method, Abrasion resistant ceramic is sintered by 1600 and achieve 95 porcelain standard. With great density, high toughness ... concentration plant,whirlcone liner,elbow,pipe,valve,sieve plate and charging hole etcIn magnetic extractor,magnetic roller,dump chest ...