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Underground Rib Reinforced Spiral Welded Galvanized Steel Pipe for Mining. GB Q235 Steel H Beam with High Quality 194*150*6.0mm. JIS Standard SS400 H beams with Good Quality 400mm-414mm. Structural Steel H Beam. HR Dedormed Steel Rebars. Alloy Low Carbon Steel I Beam for Structure. Hot Rolled Steel Wide Flange H Beam. Q235 Steel Q235A Q235B Q235C Q235D Equivalent, Q235 Steel (Q235A Q235B Q235C Q235D) Q235 steel is a plain carbon structural steel which is widely used in China, Q235 material in Chinese standard GB/T 700 is divided into 4 quality grades Q235A, Q235B, Q235C and Q235D; Density of this steel is 7.85 g/cm3, tensile strength is 370-500 MPa; yield strength is 235 MPa (data are for steel bar or steel plate diameter
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