Galvanized steel strand wire usually refers to used for bearing cable, cable, reinforcement core, etc., but also can be used as overhead transmission line, highway on both sides of the blocking cable or structural cable in the building structure. The commonly used prestressing wires are low-relaxation prestressing wires without coating or galvanizing, which are often used in Bridges, buildings, water conservancy, energy and geotechnical engineering, etc. Unbonded prestressing wires are often used in floor and foundation engineering, etc