Under normal circumstances, the chromium corundum brick is sintered chromium corundum brick. Α-Al2O3 as the raw material, adding the appropriate amount of chromium oxide powder and chromium corundum clinker fine powder, by molding at a high temperature firing. Its products are pink, hardness and white corundum approximate toughness than white corundum. Durability with its manufacturing abrasive grinding finish. Suitable for precision grinding of measuring tools, machine tool spindle, instrument parts, threaded workpiece and template grinding. Chromium in company sales chrome corundum F46 # - F320 #, low chromium F46 #-F320 #