1.usage:half round bar for shipping use and machina CCS,ABS, GL,DNV,RINA, ... ,next we introduce the products as follows:1.Usage:Half round steel bar is widely used in shipping, rail, transport equipment, and2 ... on.Meanwhile, we also supply shipping used round steel bar, angle steel , bulb flat steel bar, shipping plate,so if you also have ... us.We hope to create brilliant 2010. Hign quality half round bar