... hesitate to tell me.Dimension, Tolerance, Surface Roughness, Concentricity, Perpendicularity and others. Main applications: The enterprises of Eletricity ,smelt,mechanism,colliery ... the system of coal transfer,material transfer,milling,dust removing,and so on. PropertyItemsUnit95%Al2O399.5%Al2O3Densityg/cm33.73.9Flexural ... 6/K5.0-8.35.4-8.3 reliable joint and high intensity Alumina ceramic plunger