... rails mine rail , crane rail , train rail , iron rail Standard: BS, DIN, GB, JIS Grade: 55Q, Q235, 45Mn, 50Mn 18kg steel rails ... Material: 50Mn ,U71Mn Standard: GB2585-813. Crane Rail Specification: QU70, QU80, QU100,QU120 Unit Weight: 52.80kg/m, 63.69kg/ ... Material: 55Q Standard: South Africa Standard6. English Standard Rail Specification: 60A, 60R, 70A, 75A, 75R, 80A, 80R, 90A, 100A, 113A Unit Weight ...