china gb t 4171 q550nh weather resistant cutting steel plate

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GB/T 4171 Q355GNH steel plate weathering resistant

GB/T 4171 Q355GNH steel plate is atmospheric corrosion resistant steel, which is a low alloy steel series between ordinary steel plate and stainless steel. GB/T 4171 Q355GNH steel plate is a high weathering steel, and its production method is cold rolling or hot rolling. The GB/T 4171 Q355GNH steel plate rolling size. Thickness:1.2-150mm.

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