... strenght 4,Custom design 5,Eco-friendly,favourable price FeatureAlumina Ceramic has the advantages of super hardness,high wear-resisting,good ... pressure cleaner. 3,Wearlessness,resistant acid-base and high intensity ceramic assembly apply to petroleum ,chemical and chemical industry. 4,Wearlesness ... and other specification are upon your requirements. Abrasive resistant Alumina ceramic ring