Cold-rolled strip steel factory direct | Dingding cold rolled | Gansu cold-rolled strip steel straight 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. Curvature per meter cold-rolled ribbed steel bending straight bars no more than 4mm Dingding cold-rolled steel prices, the total curvature is not more than 0.4% of full-length steel. Weight cold-rolled ribbed steel coil steel weight not less than 100kg. Each consisting of cold-rolled steel plate by a straight rebar prices, CRB650 above grade steel and shall have welded joints. Straight bars by the same brand, same size, same length delivery supply cold-rolled into a bundle of straight rebar, heavy bundles determined by the supply and demand sides negotiated. In the construction industry, the level Ⅱ Ⅲ grade steel and reinforced in the past (the old standard) is called, the new standard in Class Ⅱ renamed HRB335 grade steel reinforcement, Ⅲ grade steel renamed HRB400 steel. Both reinforced the same point is: all belong to ordinary low-alloy hot-rolled steel; all belong ribbed steel (which is usually said rebar); can be used in reinforced concrete structural engineering.