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aluminum window screen frame

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aluminum window screen frame aluminum window screen frame

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  • aluminum window screen frame

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    aluminum window screen frame aluminum window screen frame

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  • aluminum window screen frame

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    aluminum window screen frame aluminum window screen frame

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  • Most people think that the fine wire of the front and back twist barbed wire is not as thick and durable as common sense, but the front and back twist barbed wire is made of hot-dip galvanized steel wire, which is more than three times greater than the tensile strength of iron wire, and the amount of zinc added is not less than hot-dip wire

    aluminum window screen frame

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    aluminum window screen frame aluminum window screen frame

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  • Galvanized wire coating has galvanized, aluminum, nylon or plastic coating. Zinc plating is divided into thin coating after steel wire plating and thick coating after steel wire drawing. The mechanical properties of thick coating are lower than that of smooth steel wire rope, and it is suitable for use in serious corrosive environment. Aluminized wire rope it is more resistant to corrosion, wear resistance, heat resistance than galvanized wire rope, using the method of production after the first plating. The wire rope coated with nylon or plastic is divided into two kinds: coated rope and coated rope.

    aluminum window screen frame

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    aluminum window screen frame aluminum window screen frame

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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.

    aluminum window screen frame

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    aluminum window screen frame aluminum window screen frame

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  • aluminum window screen frame

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    aluminum window screen frame aluminum window screen frame

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  • aluminum window screen frame

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    aluminum window screen frame aluminum window screen frame

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  • aluminum window screen frame

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    aluminum window screen frame aluminum window screen frame

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