Cold-rolled steel cold-rolled brands _ Dingding (certified) _ Gansu cold-rolled steel 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: manufacture of steel wire rod should be consistent with GB / T 701, GB / T 4354 or other relevant standards. Delivery status reinforced by the cold state of delivery. Cryogenic tempering process allows cold rolling. Cold-rolled ribbed steel surface quality: the steel surface without cracks, folds, scars, oil and other effects of the use of the defects. Steel surface can be cold-rolled steel rust, but should not rust leather and visual visible corrosion pits or the like. Level of cold-rolled steel plant, a hybrid structure engineering level larger than cold-rolled steel rebar brands, such as band type foundation, structural columns, ring beam, such as roof or floor slab; cast frame structure civil or industrial buildings, bridges and other structures and water conservation with two, three more steel. Three steel than the level of cold-rolled steel rebar wholesale in order to save the next segment is not the case, the general reinforcement plates are constructed, which has the smallest ratio of reinforcement to control the minimum reinforcement ratio is directly related to steel grades.