... :Q235/55Q 4.Size: 38kg/m, 43kg/m, 50kg/m Light rail,Heavy steel rail,Crane rail Specifications 1Standard:GB11264-89 ... /U71Mn/50Mn5Certificate:ISO, MTC, SGS6Delivery term:5-25 days7Packaging: 1. Light rail:Size: 6kg/m, 8kg/m, 12kg/m, 15kg/m ... : QU70, QU80, QU100, QU120Material: U71MnDimension,thickness,length,zinc coating,material, and so on, all of those can be customized as per ...