... 4,Custom design 5,Eco-friendly,favourable price FeatureAlumina Ceramic has the advantages of super hardness,high wear- ... cleaner. 3,Wearlessness,resistant acid-base and high intensity ceramic assembly apply to petroleum ,chemical and chemical industry. 4 ... Customized production is available, for more information, please do not hesitate to tell me.Dimension, Tolerance, Surface Roughness, Concentricity ...