Copper from the copper-line strand twisted a certain number of roots from the system. Copper as the name suggests, is a copper wrapped steel round wire, and therefore steel round wire wrapping peripheral copper layer composite wire, which uses low-voltage high-frequency signals of the skin effect, walking along the surface of the high-frequency region, so long as the copper layer thickness a certain range, a signal of a frequency band can be sure that transfer. Copper play a role in signal transduction of weak steel round wire then play a supporting role. Copper based packages to the different methods of steel round wire, divided into plating, coating, hot-cast / dip and electroforming. Good electrical conductivity and corrosion resistance of the product both strength and toughness of steel, but also copper. Compared to copper-line with a low density, high strength and low cost, it is the traditional copper-line replacements. Power Industry grounding rods;; power cable braided shield; connectors variety of electronic components; strengthen conductive core special cables; overhead power transmission lines and telephone lines; parallel dual-core phone users covered wire conductor: Applications electrified railway, rail lines and catenary trolley lines;; conductor communication line subscriber line and cable TV coaxial conductor material into the family line; computer LAN, access network cable, the cable conductor material within the field Plating Copper and copper strand-line content is 99.9% of the copper molecules uniformly low carbon steel plating to the processing of new composite materials, good electrical conductivity of both strength and toughness of the steel product, another copper performance and corrosion resistance. Products are widely used in high-frequency coaxial cable, steel network communications, electric railway, metro and light rail, power and petrochemical round lines. Compared to copper copper strand has low density, high strength and low cost, is the traditional copper strand copper replacement products. Applications: 1, covered wire conductor; 2, power industry grounding rods; 3, power cable braided shield; 4, connectors variety of electronic components; 5. Strengthen conductive core special cables; 6, power transmission overhead lines and telephone lines; 7, conductor parallel twin-core telephone subscriber communication lines; 8, electrified railway, rail lines and catenary trolley line; 9, cable TV subscriber lines and coaxial cable into the family line conductor material; 10, computer LAN, access network cable, the cable conductor material within the field. Guodian day state series copper strand has the following characteristics: a unique manufacturing process materials using a special process to achieve a metallurgical molecules, long life. 2, soft structure, surface bulky, cooling effect. High temperature welding, no residue, corrosion phenomenon does not occur. Surface of the copper layer is thick (average thickness greater than 0.3mm) corrosion resistance, the life of a (greater than 30 years), maintenance-free. 3, the electrical performance better skin effect principle, good conductivity, its magnetic characteristics are conducive to the spread and transmission of electromagnetic fields. 4, safe and reliable use of special connectors or by chemical exothermic welding, joint firm and stable. 5, convenient to take special heat treatment, can be made into soft state, great length, a significant reduction in a straight line connecting points. 6, the widespread use of: a storm or a plate package, the connection point less, convenient transportation