... -SK series,custom made 4-.ISO9001 certificated Fire/firecaly brick Refractory brick is dense shaped refractory ... bricks are high quality dry pressed alumina bricks, ranging from 35% to 95% in alumina content. Fire clay ... 2HrsRefractoriness under Load1,7001,7001,670 High Alumina Bricks for general uses are made from bauxite of ... Trade Co., LtdLinquan Trade, Serve World Fire bricks / refractory bricks