regular brown fused alumina
details：
brown fused alumina is produced by fusion of calcined bauxite in an electric arc furnace at over 2000 centigrade. it stands out due to very high toughness so that it has a long lifespan but cool cutting is not expected. by these characters, it widely use for working on regular steel, carbon steel, forging steel, ingot steel and cast iron6 malleable iron as well as some non-ferrous metals
