Fire clay bricks for sale are refractory clay bricks with 30~48% Al2O3 content and 50~65% SiO2 content, the refractoriness will increase with the increase of the ratio Al2O3/SiO2. Fire clay bricks for sale use clay clinker as aggregate and refractory clay as binder, forming by semi dry method. Fire clay bricks for sale are building materials in China’s five thousand years of history and are favored by Chinese engineers. Fire clay bricks for sale are acid refractories which are widely used in acid kiln lining with long life service.