brown alumina oxide 1 Professional technology and skills 2 competitive price 3 high strength,excellent wear 4.Manufacture brown alumina oxide 1.it poured with steel sliding gate, smelting rare metals, special alloys, ceramics, iron-smelting furnace of the lining (walls and tubes); physical and chemical containers , spark plugs, heat-resistant anti-oxidation coating 2. Due to high hardness, wear ...