... .Steel heavy rail 2.Standard: GB-11264, YB222-63 3.Grade:Q235/55Q 4.Size: 38kg/m, 43kg/m, 50kg/m Light rail,Heavy steel rail,Crane rail ... /50Mn5Certificate:ISO, MTC, SGS6Delivery term:5-25 days7Packaging: 1. Light rail:Size: 6kg/m, 8kg/m, 12kg/m, 15kg/m, 18kg ... /m, 22kg/m, 24kg/m, 30kg/mMaterial: Q235B 55Q2. Heavy railSize: 38kg/m, 43kg/m, 50kg/m, 60kg/mMaterial: U71Mn ...