... the white fused alumina, white fused alumina sand , white fused alumina powder, fused white fused alumina, white fused alumina abrasive, with good quality and ... hardness and slight lower toughness comparing with brown fused alumina. It is also characterized by its high purity, ability of ... , good thermal stability. As the abrasive materials,It is suitable for grinding high-speed ,high carbon steel , ...