Steel wire rod wholesale | Dingding Industry (certified) | Jiangsu steel wire rod by Ding Ding Industrial Co., Ltd., Henan Province. Ding Ding Industrial Co., Ltd., Henan Province (www.hnddsy.com) is a professional enterprise, "cold-rolled ribbed steel CRB550", the company of "honesty, hard service" concept, to provide you with the highest quality products and services. Welcome to inquire! Contact: Liu. Cold-rolled ribbed steel bars and application performance results are as follows: China's national standard "rolled ribbed" GB13788─2000 in LL550 grade mechanical properties are developed with reference to international standards and standard-setting steel rod model, tensile strength 550Mpa steel wire rod company, according to standardized elongation Germany, the two indicators from steel wire rod quality control standards of cold-rolled ribbed steel bar is not lower than the international standard. Cold-rolled ribbed steel is widely used in industry and construction, cement poles and transport pipes, highway pavement and bridge steel mesh and fence, with hydropower dam construction project. Cold-rolled ribbed steel can be welded steel mesh into a network machine shipped to the construction site for concreting work, changing working practices behind manually tie tied. In addition, for the production of cold-rolled ribbed steel φ10mm below the small size rebar, hot rolled rebar varieties make up less inadequate.