Ordinary hot-rolled steel grades by HRB and its brands constitute the minimum yield point. H, R, B respectively, hot-rolled (Hotrolled), ribbed (Ribbed), steel (Bars) the first three words of the English alphabet. Hot-rolled ribbed steel division two HRB335 (old No. 20MnSi), three HRB400 (old number 20MnSiV, 20MnSiNb, 20Mnti), four HRB500 three grades. Steel specification: 6mm steel rebar manufacturer should be straight, no local bending rebar with straight centerline deviation should not exceed 1% of its length. Or curved steel rebar into the disc after straightening 6mm steel should only be permitted. The straightening of bent steel not appear dead 6mm steel procurement, or should be removed not. After straightening steel reinforcement bars if found splitting phenomenon should be used as waste disposal, and should identify batch of steel quality. After straightening machine steel raised straight, its surface may not have visible injuries. 6mm steel production plant, cold-Ding Ding (certified), 6mm steel provided by Ding Ding Industrial Co., Ltd., Henan Province. Ding Ding Industrial Co., Ltd., Henan Province (www.hnddsy.com) is Anyang, other leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In cold-Ding Ding leadership with the staff warmly welcome all inquiries negotiations to create a better future for cold-Ding Ding.