... mainly engaged in various kinds of steel rails. It is including light rails, heavy rails, crane rails ... and rail fittings. (1)Light rails: 9kg, 12kg, 15kg, 18kg, 22kg, 24kg, 30kg Steel grade: 55Q / Q235 Length ... … (2)Heavy rails: 38kg, 43kg, 50kg, 60kg Steel grade: U71Mn / 50Mn and so on Length: 12 ... QB (3)Crane rails: QU70, QU80, QU100, QU120 Steel grade: U71Mn / U75V Cut length: 12m Executive standard ...