This product twist system closely even, galvanized layer of bright and clean and firm, strong corrosion resistance, the hot dip galvanizing vertical process, to ensure that the zinc layer thickness. The product, as the core framework material of power cables and with its advantages of corrosion resistance, high strength, excellent property of expansion and high performance cost ratio and so on, directly serves the construction, transformation and updating of power supply and grid. Also, the product is widely used for fastening hanging bracket, bridge, suspension, communication wires, overhead power line, cable steel core and fixed object and so on. Galvanized steel wire: the product has excellent mechanical property, covered by deep zinc layer, with smooth, clean and firm surface and heavy coil weight, as well as it has accurate sizing. The product is used as the steel core wire in the cable of electric power circult.