standard: jis, aisi, astm, gbgrade: q235 55q U71Mn 75 v 50mn 45mnrail heigth: 69.85-185.74mmR50-R65bottom w107.95mmweb thickness: 5.9-44mmhead w120mmlength: 6-12 mtype: light railapplication: railway railweight: 8.42-118.1 kg msecondary or not: is secondarybolt diameter hole: 22mm 24mm