The first of these features is the number of pigs that the rope consists. There may be one, two or three of them. The second parameter is the configuration of the strands. It can be flat, oval and trihedral. Third — direction direction. It can be straight and reverse. Fourth — genus. According to this parameter, cables are divided into linear, point and point-linear. In addition, steel ropes can be ordinary, non -discriminate and not spinning.