Rolling basic material of solid, i.e. non-hollow, structure; Piercing

Full Title

Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work (straightening by rollers B21D) > the axes of the rollers being arranged essentially diagonally to the axis of the work, e.g. "cross" tube-rolling > Rolling basic material of solid, i.e. non-hollow, structure; Piercing