Annealed low carbon steel wire is cold drawn, heat, temperature, insulation and other technology made of a soft iron wire products. Wire by use of different ingredients are not the same, it contains the ingredients are: iron, cobalt, nickel, copper, carbon, zinc, and other elements. The hot metal billet rolled into 6.5mm thick steel that is rod, and then put it Rula Si device into a different diameter wire pull, and gradually narrow the drawing aperture plate, for cooling, annealing, coating and other processing technology into a variety of different specifications of the wire.