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预应力混凝土用钢丝简称预应力钢丝,是“七五”计划期间我国重点开发并将大力增产的优员钢丝制品。预应力钢丝是建筑行业混凝土结构中广泛使用的材料,电是现代化交通运输发展不可缺少的金属材料。主要用于大型铁路、公
Prestressed concrete wire referred to as prestressed steel wire, is the “Seventh Five-Year Plan” focused on the development of our country and will greatly increase the production of excellent steel products. Prestressed steel wire is a widely used material in the concrete structure of the construction industry. It is an indispensable metal material for the development of modern transportation. Mainly used for large railway, public