Take metallurgy grade alumina powder and high purity limestone as raw material,fusing in a large electric arc furnace, then clinker go through fine grinding and homogenizing. Dianka cement has many advantages such as excellent early strength,broad scope of application, stable setting time, make it the first choice of refractory castable manufacturer both in domestic and abroad. Before leave the factory, Dianka cement will go through the castable test accoring to GB201-2000 standard(5% cement content),it could also be tested according to customer's demanded formula, help them use our cement properly.