We offer black iron wire for worldwide customers. This is the most low cost industrial wires without galvanizing, zinc coating or plastic coating. Surface treatment of black iron wire is simply oil tapered. Forms of Supply: Black annealed iron wire, soft bright annealed iron wire. Wire Diameters We Supply: BWG5-BWG39，T/S（kg/mm2):30-55. Packing: 0.3 kg/coil - 500 kg/coil plastic inside, hessian cloth or weaving bags outside.