First, 550 (CRB550) the level of cold-rolled ribbed steel is mainly used for non-prestressed concrete structural members in the force reinforcement, rack power bars, stirrups, and structural steel, can be binding, welding or soldering skeleton mesh form, 4 ~ 12mm diameter cold rolled proxy equipment conditions, the intensity of the design value of 360MPa; two, 650 (CRB650) the level of cold-rolled ribbed steel is mainly used for prestressed concrete structural members of the force reinforcement setting cold rolling equipment, diameter 4 ~ 6mm, the design value of tensile strength 430Mpa, compressive strength 380Mpa; three, 800 (CRB800) the level of cold-rolled ribbed steel is mainly used for prestressed concrete structural members in the force reinforcement diameter 5mm, the design value of the tensile strength of 530MPa, compressive strength 380Mpa. Cold rolling mill manufacturer Gongyi City, Di Metallurgical Equipment Co., Ltd. is located in Gongyi City, Henan Province cold rolling equipment businesses, the city is located in Zhengzhou, Luoyang, even Huo high-speed, 310 State Road, the Longhai railway passing through, the traffic is very convenient . Cold rolling mill machinery manufacturers Gongyi Kindi with strong technical force, sophisticated processing equipment, perfect testing means cold rolling equipment, the product of the technical indicators has been a leader. The manufacturer may apply to the majority of cold-rolled ribbed steel manufacturers to mention cold rolling mill, cold-rolled ribbed steel bar production line, cold-rolled steel production line costal, bar straightening machines, three steel straightening cutting machine, hot rolling up machine , steel cutting machine, cold rolled and twisted, steel extension machine, automatic steel straightening and cutting machines and other mechanical equipment. And the company's production facilities in the market was more than a bad reputation. The index by more than equipment to produce cold-rolled ribbed steel in full compliance with national standards, and won the praise and trust of users! Cold rolling mill is not a one-time investment products, long-term use, the use of the products, so our focus in the selection of cold rolling mill equipment, to select on the cold rolling mill equipment manufacturer's inspection, only has a wealth of experience in production, excellent quality cold-rolled equipment is in line with our interests. Cold rolling equipment businesses _ Kindi metallurgy (certified) _ cold rolling equipment provided by Kindi Metallurgical Equipment Limited. Kindi Metallurgical Equipment Co., Ltd. (www.ye-jin.com) is Zhengzhou, reinforced and prestressed machinery 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 Kindi metallurgy leadership with the staff warmly welcome all inquiries negotiations to create Kindi metallurgical a better future.