... the production of highway bridge st Bridge steel plateA709M (Gr36.50,50w,70w):Applications: Riveting and welding for the production of ... bridge). Quick Details: Standard: ASTM, special condition Grade: A709M (Gr36.50,50w,70w)Place of Origin: Henan Province,China (Mainland) Brand ... is in 40daysSpecifications: Steel Plate A709M (Gr36.50,50w,70w) 1 Grade: A709M (Gr36.50,50w,70w) If you have any questions ...