1200 tons Q345NQR2 hot rolled bridge steel chemistry pickling steel coil to Columbia
Comments: ASTM A 242 GR. 1 steel plate, Q345NQR2 hot rolled bridge steel chemistry, A 242 GR. 1 steel plate, under ASTM standard, we can regard A 242 GR. 1 steel plate as Steel Resistant to Atmospherical Corrosion A 242 GR. 1 steel plate is one mainly of Steel Resi
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