Automatic Barbed Wire Machine in Amritsar by Singhs Industries. Singhs Automatic Barbed wire machine is manufactured indigenously in Amritsar (Punjab) INDIA, using latest technologies that make its design robust and easy to operate. Barbed wire machine produces 600 Kg of barbed wire in 8 hours shift. Barbed wire, also known as barb wire, in the southeastern United States, bobbed wire, is a type of steel fencing wire constructed with sharp edges or points arranged at intervals along the strands. It is used to construct inexpensive fences and is used atop walls surrounding secured property. It is also a major feature of the fortifications in trench warfare (as a wire obstacle).