Phosphate bricks and wear-resistant bricks are both of the phosphate bonded high alumina kiln lining bricks. Phosphate bonded high alumina bricks use phosphoric acid solution or aluminum phosphate solution (aluminum dihydrogen phosphate, PA-80 glue, etc.) as the binder, bauxite clinker as aggregate, and press molding. It is a chemically bonded refractory bricks product made by treatment at a temperature of 500~600℃. Use phosphate to combine high alumina bricks, referred to as phosphate bricks. And use aluminum phosphate combined with high-alumina bricks, referred to as wear-resistant bricks. The latter has higher compressive strength.