All steel products manufactured by the rolling method are called rolled metal. They are made on rolling mills, by cold and hot rolling.The range of rolled metal products also includes fittings. It is intended for the creation of reinforced concrete structures and for complex installation work. The construction industry has become the main place of use of rebar. Concrete used in construction is capable of cracking quickly and falling apart. The introduction of metal structures in the form of reinforcement into liquid concrete changes the situation for the better. This material acquires increased strength, resistance to deformation and temperature changes. With the help of reinforcing rods, a solid foundation and reliable wall structures of multi-storey buildings are created.The reinforcement products used in the installation process allow you to fix the structure in the desired position.There are six types or classes of fittings (from A1 to A6). A table is created for all rolled metal products. It indicates its ultimate strength, dimensions, weight and scope of application. Fittings of class A1 and A2 have a smooth surface and can only be used during installation work.All other types of reinforcement are intended for the formation of reinforced concrete structures and have a corrugated surface. The presence of protrusions and cracks on the metal product provides better adhesion to concrete.The most common class of reinforcement used in construction has become A3. Being strong and durable, it allows you to solve all construction tasks, and, at the same time, has an affordable price. Rolled metal of type A3 is produced with a diameter from 8 to 40 mm.The A4 reinforcement class is able to withstand more stress than the previous type of rolled metal. For this reason, the main area of its use was the creation of strong foundation structures.Fittings of type A5, A6 are not widely used in the field of civil engineering. This is explained by the high cost of these materials and their characteristics, which far exceed the standards established for this type of construction work.The two most powerful classes of reinforcement are the ideal building material for the construction of large-scale buildings. Their example can be huge factory buildings in which multi-ton working equipment will be installed. Buy Cenforce Online: https://wheretobuyinus.com/product/cenforce/ cheap.