Ribbed steel symbol | Ding Ding Industry (certified) | Jiangsu ribbed steel provided 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 advantages: high strength steel cold-rolled ribbed steel mesh, saving construction steel and reduce the project cost. LL550 grade cold-rolled ribbed steel bars and Hot rolled steel compared to cast structures (especially the floor roof) can save 35% ─40% of steel. Such considerations do not hook cold-rolled ribbed steel sheet, steel savings even more. According to the market price of steel, each using a ton of cold-rolled ribbed steel bars, steel cost savings of around $ 800. Steel reinforced concrete symbol means and prestressed concrete steel ribbed steel, which is a circular cross section, sometimes a square with rounded corners. Including plain bars, ribbed bars, torsion bars. Reinforced concrete with reinforced concrete refers to straight bars or reinforced with strips of steel plate, its shape into round bar and deformed bar two, the delivery status for round two straight bar and plate.