GB/T13793-2008 Q345C welded steel pipe using hot-dip, electro-leaching process, compared with Q345A, Q345B steel. Q345C steel pipe’s low temperature impact test temperature is low, good performance, mainly for the structure, oil, transportation of liquids and gases, general purpose, the surface can be painted black paint, anti-corrosion oil, galvanized or as customer requirements.
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