These types of steel rebars are in the form of smooth and uniform bars that do not have any protrusions on them. They are made in sizes from 6 to 50 mm and are used for construction industries. For example, for streets and airports, flat rebars are used to make contraction joints. The contraction joint is used to prevent cracking and shrinking of concrete. Simple rebars are placed at certain distances between concretes to prevent them from cracking. These products are highly flexible and can be easily cut without being damaged. These products are not suitable for building and building bridges. Because they cannot increase the strength of concrete. Due to the lack of a tread, if pressure is applied to the concrete, it will soon separate from it. Therefore, the concrete structure breaks
