10m- 40mm Reinforcing Steel Bar Price. 2, Length: 6m, 9m, 12m or customized. 3, Standard: GB, ASTM, AISI, SAE, DIN, JIS, EN. OEM technology - send detailed technical parameters for accurate quotation. 2, Produce Process: smelt iron - EAF smelt billet - ESR smelt billet -. hot rolled or forged to get the steel round bar and plate.