Bends are products that change direction in of various types. These are pipe segments that are bent at a specific angle. Special tube benders are usually used for their production. By means of butt welding, the bends are installed. The scope of application of the products is wide, however, most often GOST bends are used in the installation of of water pipelines, gas pipelines, oil pipelines. Alloy or is used as raw material. Additional coatings to enhance protection may also…