Steel Rail

Specification:8kg, 9kg, 12kg, 15kg, 18kg, 22kg, 24kg, 30kg,37.2kg/m, 37.5kg/m,38kg/m, 43kg/m, 45kg/m, 50kg/m
Standard:GB11264-89 & YB222-63
Material:Q235B / 55Q /U71Mn