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-shaped, two-roll mill products are on both sides of the ribs out of cold-rolled straight 11mm rebar prices, easy and hot-rolled steel confused now less used; three-roll products are on three sides of ribs 11mm cold-rolled strip steel straight cash, more than 90% of the mill are three-roll mill. It is consistent with the foreign standards. Three-roll mill by traction distinction can be divided into two kinds of passive and active. Cold-rolled ribbed steel structure design points: The minimum reinforcement ratio selection. The use of reinforced concrete structures under flexural members longitudinal reinforcement ratio minimum tensile reinforcement of cold-rolled strip steel straight, take O. 2% and 45ft / fy%, whichever is greater, 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. Cold rolled straight 11mm rebar prices | Dingding cold rolled | Gansu cold rolled steel strip provided directly 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.