Round filled materials are used in this process. After the hot drawing process, as Rastahl, the products are turned into pipes in our factory with the hot drawing system. Hot rolled round materials are adjusted to pass through rollers whose outer diameter is adjusted, and then drilling is performed with drilling tools according to the wall thickness. After the drilling process, the outer diameter of the pipe is brought to the desired sensitivity by passing the rollers adjusted to the outer diameter in order to adjust the ovality of the outer surface of the pipe at the desired level. After this process, when there is a demand for a change in the hardness of the material surface, heat treatment is applied and then the outer diameter is brought back to the desired  level. In this way, the hot shot process is terminated .