Four-sided steel types are generally produced with CK45, MO40, ST52, ST44 materials.

Four-sided steel sides are used in various industries, the most important of which are the rail construction industry, machine chassis, construction and civil engineering industries, cranes, cutting blade holders and rails.

Quadrilaterals are produced and produced with a thickness of 8 to 200 mm.

Other high-consumption quadrilaterals are transformer quadrilaterals, factory quadrilaterals, machined quadrilaterals, and polished quadrilaterals.