经过半年多努力，航天总公司四院４０１所一条冷轧带肋钢筋生产线建成，并通过了陕西省建设厅组织的投产鉴定，取得了产品合格投放市场的“三证”。冷轧带肋钢筋是国家建设部推广的项目。该产品与普通钢筋相比具有较高的抗拉强度和与混凝土粘结强度，可提高建筑结构件性能... After more than half a year’s efforts, 401 Cold Rolled Ribbed Steel Bar Production Lines in the Fourth Institute of Aerospace Corporation were completed, and passed the production appraisal organized by the Shaanxi Provincial Department of Construction, and obtained the “three certificates” for the qualified products to be put on the market. Cold-rolled ribbed rebar is a project promoted by the Ministry of Construction. This product has higher tensile strength and bond strength with concrete compared with ordinary steel bars, which can improve the performance of building structural parts...