... ,20#,20CrMnTi technique: hot rolled, forged carbon steel round bars,steel round bars Grade: 45# 45B S45C C45 ... : hot rolled, forged DescriptionCarbon structure steel/carbon steel round bar/flat bar/carbon steel plate/sheetGradeGB Q255/JIS SS490/DIN ... Our main products are H beam steel, angle steel, round steel, steel billet, strip steel, gear steel, twisted steel, channel steel, etc. All these products ...