... produced by Our Plant, with bauxite , coal, scrap iron and pyrite as the main raw materials, in the process ... steel, austenitic stainless steel, heat-resistant alloy steel, titanium alloy steel, especially for the grinding and processing of ... dry mill and easily burned workpiece. Mono-crystalline aluminum oxide:Code NameChemical composition(%)Magnetic material content(%)Al2O3Fe2O3SiO2TiO2SA98.89-99 ...