Product Description of Q235,50Q,50Mn,55Q,U71Mn,U75V,ect railroad steel rail, track railSpecificationsHead Width: 32.1-70mm Bottom Width: 63.5-132mm Length: 5-12.5m Material: Q235,50Q,50Mn,55Q,U71Mn,U75V,ect railroad steel railStandard: AISI,ASTM,BS,DIN,GB,JISGrade: Q235,50Q,50Mn,55Q,U71Mn,U75V,ectRail Heigth: 63.5mm-152mmBottom Width:..