Steel wire rod suppliers, Ding Ding cold-rolled (certified), Shandong steel rod 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 bars with hot-rolled plate cold-reducing multi-channel, a pressed steel ribs and a two or three sides of the crescent-shaped face with the elimination of internal stress after formation. Cold-rolled ribbed steel advantages: high strength cold-rolled steel ribbed bars, saving and reduce the project cost of construction steel. Bond properties of good cold-rolled ribbed steel bars and concrete between. Cold-rolled ribbed steel elongation than the cold steel of similar large. Steel hooks. There are three forms, namely semi-hook, hook and straight oblique hook. After bending rebar steel wire rod plant, bend endothelial contraction, skin extending axis of the same length, bend to form a circular steel wire rod supplier, after Bend size larger than the sizes of materials should be considered bending adjustment value. 2.5d apex diameter steel rod rebar prices flat part 3d. Steel hooks to increase the length of the theoretical value: to turn semicircle hook for 6.25d, for direct hook to 3.5d, for oblique hook for 4.9d.