7.5mm wire rod rebar suppliers _ Ding Ding cold rolled steel wire rod _7.5mm 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 and application performance results are as follows: China's national standard "rolled ribbed" GB13788─2000 in LL550 grade mechanical properties are developed with reference to international standards and standard-setting 7.5mm wire rod steel, tensile strength 550Mpa 7.5mm steel wire rod manufacturers, elongation according to standardized Germany, from two indicators contrast, the standard of cold-rolled ribbed steel bar is not lower than the international standard. Cold-rolled ribbed steel entering the inspection process 7.5mm wire rod with rebar suppliers must be the appearance of quality inspection, flat rolled thickness, pitch measurements, as will be necessary to review the project 7.5mm wire rod rebar spot, strict control. Mainly the product, it will seriously affect their physical properties, durability, should be firmly return. Cold-rolled ribbed steel round bar a little higher than hard lashing, lashing points prone to rotation and loose, so each intersection should be carried out banding.