Type:DIN 17221 Rail Shoulder for Concrete Sleeper
Material:Qt400-15(Ggg40), Qt450-10(Ggg45), Qt500-7 (Ggg50)
Surface Coating:Plain Oiled, Oxygen Black, Zinc Plated, Hot DIP Ga
Standard Type:GB/T 1222, DIN 17221
Supply Ability:1000 Ton/Tons Per Month
Delivery:Within 20 Working Days
Export Markets:Global