... --250mm We own the eight profession engineers of high strength steel wire,and five QC to keep the products good quality ... as follows:1.Usage:Half round steel bar is widely used in shipping, rail, transport equipment, and2.Steel grade:A,AH32, AH36 with ... and so on.Meanwhile, we also supply shipping used round steel bar, angle steel , bulb flat steel bar, shipping plate,so if you also ...