GB T 18982 Q345GNHLJ anti weathering corrosion 8mm steel sheet chemical composition

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    GB T 18982 Q345GNHLJ anti weathering corrosion 8mm steel sheet chemical composition

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    GR/T18982-2003 Q310GNHLJ Weathering steel in China. … corrosion ... GR/T18982-2003 Q345GNHLJ Steel ... Steel Resistant to Atmospherical Corrosion; GB/T 18982 ...... 16mo3-alloy-steel-plate-(-gb-12cr1mov-alloy-steel-sheet) ... pressure-steel-plate-8mm-ck20 ... low-alloy-steel-plate-chemical-composition-22306 ...
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