The Vitari programme for barbed wire machinery covers both the conventional barbed wire manufacturing typologies such as Domingo, Glidden, Iowa, Simplex, Waukegan produced on the BVM model as well as the more recent and innovative barbed wire machine model BVR for the manufacture of Iowa reverse-twist barbed wire. The BVR machine model is a high-speed barbed wire machine that processes two line wires alternately, in clockwise and anti-clockwise mode. This allows the barbed wire to be easily installed as the alternating torsions keep the barbed wire in a straight line and not looped as with the conventional BVM model that processes clock-wise torsions throughout.