China Wholesale Barb Wire used for Fence Barbed wire is a type of wire that has sharp barbs or edges at regular intervals along its length. The barbed wire is primarily used as a protective barrier for properties, farmland, and livestock. The sharp barbs serve to deter animals or people from attempting to cross the barrier, as the barbed wire could cause injury if touched or attempted to be crossed without proper caution. Barbed wire can be made from various materials such as high quality iron wire(Q195/Q235) or steel wire(#45). The barbed wire can be galvanized or coated with PVC to increase its durability and resistance to corrosion.