1.Steel heavy rail 2.Standard: GB-11264, YB222-63 3 ... : 38kg/m, 43kg/m, 50kg/m Light rail,Heavy steel rail,Crane rail Specifications 1Standard:GB11264-89, YB222- ... , 38kg, 43kg, 50kg3Length:6-12m4Material:55Q/Q235B/U71Mn/50Mn5Certificate:ISO, MTC, SGS6Delivery term:5-25 days7Packaging: 1. Light rail ... m, 22kg/m, 24kg/m, 30kg/mMaterial: Q235B 55Q2. Heavy railSize: 38kg/m, 43kg/m, 50kg/m, 60kg/mMaterial: ...