Brown Fused Alumina, Abrasive Wheels, Resin Grinding Wheels manufacturer / supplier in China, offering High-Purity Single Crystal Corundum, with Outstanding Hardness and Strong Toughness, Is Precisely Ground and Polished, High-Hardness Black Silicon Carbide, Powerful Grinding, High-Efficiency Sandblasting, Brown Corundum: High Strength, High Temperature Resistance, Essential Abrasive for Casting Sandblasting and so on.