Cold-rolled ribbed steel structure design elements: as specified shear reinforcement. No requirements for seismic reinforcement may be used as reinforced concrete shear wall buildings and seismic intensity of 6 degrees, 7 degrees and 8 degrees (C) of reinforced concrete building frame a wall structure, frame - supported shear wall structure and some scissors power distribution muscle wall structure shear walls. But the bottom level seismic level distribution of shear reinforcement should strengthen parts of hot rolled ribbed bar. Cold-rolled ribbed steel bar production equipment: cold-rolled ribbed steel bar production equipment based on the number of rolls in two and three-roll-shaped roll shape. Active three-roll mill capable of rolling high strength (1500MPa) CRB550 manufacturers, large diameter (ФR12) cold-rolled ribbed steel bars. Because it does not depend on the tractor, but by direct income roll raw materials, so its raw materials and finished products can be both wire rod, it can also be straight. Factory direct CRB550, Ding Ding cold-rolled (certified), CRB550 by Ding Ding Industrial Co., Ltd. of Henan Province. Henan Ding Ding Industrial Co., Ltd. (www.hnddsy.com) is Anyang, other leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Ding Ding cold rolling in leadership with the staff warmly welcome all inquiries negotiations to create a better future for cold-Ding Ding.