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Rust spot of weather resistant steel plate

Rust spot of weather resistant steel plate

The first stage: The weather resistant steel begins to grow small rust spots, the rust spots of ordinary steel plates are relatively loose, and some of the rust treatment is poor and even peels off the rust.

The second stage: The weather resistant steel has less rust water, and the rust spots are small and dense. The ordinary steel plate has more rust water, and the rust spots are larger and sparse; the rust column of the ordinary steel plate has serious tear marks and black marks at the bottom of the workpiece .

The third stage: The weather resistant steel has a clear and dense rust nucleus layer, and the rust points are closely adhered to form a protective layer, and the rust is hardly rusted by hand rubbing; the ordinary steel plate has a large amount of rust, and even the whole piece of rust peels off. Weather resistant steel tends to be reddish-brown, while ordinary steel plates tend to be dark black.

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