Product name : Carbon Steel Square Bar Standard : AiSi, ASTM, bs, DIN, GB, JIS Material : st37 st44 st52 ss400 q235b a53 1020 Q235B 1045 S45C CK45 and so on Width of Side : 1.0-400mm Length : Customized Place of origin : Shandong, China Payment method : T/T, L/C Packaging : Standard sea package or as customers' requests