Refractory bricks are heat-resistant bricks used in the interior walls of furnaces, reactors and high temperature industrial units. In fact, refractory bricks are bricks that have a paste temperature above 2 degrees Celsius. These bricks, in addition to resisting heat stress and other heat-induced physical phenomena, must also be resistant to physical erosion and corrosive chemical agents at temperatures above 5 ° C. These bricks are used depending on the raw materials and their sintering temperatures are often cooked at temperatures above 2 degrees Celsius. Refractory bricks are made of natural and handmade compounds and minerals such as alumina, refractory soil, bauxite, chromite, dolomite, magnesite, silicon carbide, zirconia and so on. The choice of raw materials depends on the brick working conditions. The production of refractory bricks goes back to the ancient times as the ceramic and metallurgical industries developed. In recent years, refractory bricks have become the focus of building facade. The varied colors as well as the attractive textures of these bricks have enabled architects and builders to use them in their buildings in Iran. Many companies have focused on producing refractory bricks. In the meantime, Sahand Refractory Brick Industrial Group, using experienced personnel and advanced equipment, has been able to produce high quality Refractory Bricks in a variety of colors including Semirom (red), Shamouti (yellow and orange), black, brown, nesafe. , White (speckled white, white plaster and white cream theme), granite alder and various shapes and sizes.