Standard: BS,JIS,ASTM,DIN,EN,GB,AISI prime quality ... carbon steel(Q235 series/Q295series/S235JR-S355J2),St series,A36-A572 and so on3.executive standard:ASTM/DIN/JIS/GB/EN/FN ... /BS4.packaging:standard exp-package or as customers' reuirements5 ... .963a63017613121.40763b63017815131.29863c63018017141.189 Hot rolled SS 400 EN standard steel H-beams