Cold-rolled ribbed steel production equipment: cold-rolled ribbed steel production equipment based on the number of rolls in two and three-roll-shaped roll shape. Three-roll mill passive devices with a simple structure adjustment large 12mm cold-roll steel wire rod spot, easy to extend the use of carbide roll roll life and other characteristics, but because of cold rolled steel in the process is subject to considerable tensile stress, it is actually in the state of 12mm rollers pull cold rolled steel wire rod prices, maintaining the plasticity index finished very unfavorable, in addition to cold-rolled steel wire rod, rebar when the tractor roll through, easy to damage the transverse ribs, but also easy to wear drum surface. Cold-rolled ribbed steel structure design points: The minimum reinforcement ratio selection. The use of reinforced concrete structures affected by minimum reinforcement ratio of flexural members longitudinal tensile reinforcement, take O. 2% and 45ft / fy%, whichever is greater of 12mm cold-rolled steel wire rod plant, when using C35 concrete after the entry of 0.196%. In other words, when the concrete strength class C35 and below. The minimum reinforcement ratio is from 0.2% to control, not blind other strong substitution reinforcement. 12mm cold-rolled steel wire rod spot, Ding Ding cold-rolled, cold-rolled steel wire rod by Ding Ding Industrial Co., Ltd., Henan Province. Ding Ding Industrial Co., Ltd., Henan Province (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. In cold-Ding Ding leadership with the staff warmly welcome all inquiries negotiations to create a better future for cold-Ding Ding.