... Track, Railway Rail,Railway Track Standard: BS, DIN, GB, JIS etc Grade: 55Q, Q235 etc rail steelStandrad: ... :Q235,55Q,U71,U71Mn,45Mn,51Mnsize:light rail: GB:9kg,12kg,15kg,22kg,30kg; YB: 5kg,8kg ... QU80,QU100,QU120length: 5-12m for light rail;12.5m,25m for heavy rail;12m for crane railContact ... .512.544.653GB501521327015.512.5-2551.514GB601761507316.59-12.5,25GBCrane railSizeHeight (mm)Bottom width(mm)Head ...