Commodity: Forged steel round bar Grade: S45C, delivery condition: as forged. Length : 4.0 - 6.0m Diameter tolerance:-0/+7mm Process : EAF + LF + VD ( 100% ) Straightness:4mm/M Max. Ultra sonic test: Sep1921-84 Class 3 C/c Surface Condition : Black ( No Grinding ) Cutting : End Bar must be Saw Cutting Manufacture:Jiangsu Zhuhong Forging Co.,Ltd.