Refractory bricks come in a variety of sizes and shapes, and are frequently trimmed to suit, giving their installation more freedom. They can also be arranged in various ways, enabling the construction of complicated structures.

High-temperature furnaces, kilns, incinerators and other fire-resistant buildings are built with refractory bricks. Refractory bricks have a much higher melting point than ordinary bricks because they are made of heat-resistant materials including porcelain, alumina, magnesia, and other compounds. This guarantees that they won't degrade or crack as a result of intense heat or abrupt temperature changes.

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