Special-shaped steel wires refer to steel wires with non-circular cross-sections. Including flat, rectangular, oval, square, triangular, trapezoidal and other special cross-sectional shapes. Like other steel wires, special-shaped steel wires are made from hot-rolled wire rods and processed by cold drawing or cold rolling. Cold rolling generally uses roll die technology. It has a wide range of uses, including mechanical processing industry, textile industry, sealing wire rope, structural steel wire and nail-making steel wire, etc.