Prestressed steel wire, strand are mainly used for prestressed steel structure, a variety of rail and road bridges, factory plant, high-rise building, prestressed construction and a variety of building foundation columns and the transformation of reinforcement, the city' s overpass, Shell safety of nuclear power stations, television tower, water towers, concrete silo, sewage treatment, anchoring the rock, water conservancy and hydropower project, the standard pre-stressed concrete structures, poles, water pipes, crane beam, the level of large plates, hollow Floor, and so on, its still in the area continue to grow.