metal window screen

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  • Large roll galvanized wire phosphating film is dark gray to black gray, the thickness is generally 5-20μm, has better corrosion resistance in the atmosphere. Membrane is a microporous structure, strong adsorption ability to paint, such as used as paint bottom, corrosion resistance can be further advanced. Metal oxidation treatment: Add steel products to NaOH and NaNO2 mixed solution, heating treatment, the surface can form a layer of thickness of about 0.5-1.5μm blue oxide film, in order to reach the purpose of steel corrosion prevention, this process is called blue treatment, referred to as blue.

    metal window screen

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    metal window screen metal window screen

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  • Its specific design layout principle is:

    metal window screen

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  • 2. The cleaning agent used for cleaning should have no effect on the binding force of the coating and no corrosion on the matrix.

    metal window screen

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    metal window screen metal window screen

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  • metal window screen

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    metal window screen metal window screen

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  • metal window screen

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    metal window screen metal window screen

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