... ASTM A615, BS4449, GB Material: HRB4000, HRB325 Product: Deformed steel barsOD:6mm-36mmLength:6m, 8m, 9m, 12mStandard: ASTM A615 Gr ... We are a professional enterprise engaged in export business of steel products combining processing, distribution and logistics together. So far ... 10 famous enterprises in China, such as Bao steel group, Wuhan iron & steel group, Laiwu steel group, Shagang group, Rizhao ...