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Xiwang Iron and Steel Company has a production capacity of 1500,000 metric tons of thread steel and has production licenses of second level and third level steel; our product wins the title of "Quality-assured Building Material in Chinese Markets" and becomes the product appointed by national key projects such as Tunnel Project of Shandong World Exposition. We produce kinds of construction materials, shaped steel, board steel, cast iron and cast steel etc. (SPEC) C: 0.25% max. Si: 0.80% max. Mn: 1.60% max. S: 0.045% max. P: 0.045% max. Ceq: 0.52% max. (INDEX) Dia.12mm,14mm,16mm,18mm,20mm,25mm,28mm,32mmLength: 9m&12m&6mStandard: QB1499-2000