5.5 Shelf rebar, cold-Ding Ding (certified), 5.5 rebar 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 intensity level roughly the same countries, both in the upper and lower 550Mpa specifications 4─9mm. For ordinary reinforced concrete structures, such as pouring the floor, the force and distribution muscle tendons foundation slab 5.5 rebar manufacturers, distribution tendons shear walls, beams, etc. stirrups. Mechanical properties of reinforced international standards ISO10544─1992 (E) provides as follows: yield strength 500Mpa 5.5 rebar suppliers, tensile strength 550Mpa 5.5 steel shelf, elongation (gauge 5 times the diameter) of 12% (Note: elongation of the set δ10≥ 8% instead δ5≥12%). Cold-rolled ribbed steel entering inspection after inspection before use. Inspection by the same factory, same brand, same size as a group, and each batch weighing not more than 10t. First for visual quality inspection, testing surface cold-rolled ribbed steel bars should have defects such as cracks, folds, scars, indentation, mechanical damage or other effects used; then rolled flat measuring its thickness, pitch, weight deviation .