Steel rail:light rail weight:4kg,8kg,12kg,15kg,18kg,22kg,24kg,30kg/m Material:Q235,55Q,50Q Length:6,8,9,10m Standard:GB11264-89,YB222-63 THE LIST OF YYGT Name of CommoditySpecificatonMaterialsStandard of ProductsTheory WeightLength of Dimension (m)Packed in bundle..