HD-A71 Brown Fused Alumina 1,high hardness 2,compact quality 3,large bulk density 4,anti-corrosive refractory material HD-A71 Brown Fused Alumina is characteristic by high hardness, good casting and spraying effect.Funtion1.Grinding of steel with high carbon, high speed and quenching.2.Ideal polishing material3.Mold casting material4.Spraying material and coating material.5.High refractory ...