drywall screws exterior use

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  • Performance characteristics of zinc coating: zinc layer of thick galvanized wire zinc layer crystallinity meticulous, uniform and no gap, good corrosion resistance; The zinc layer obtained by electrogalvanizing is very pure and corrodes slowly in the gas, liquid and fog of acid and alkali, which can effectively protect the steel matrix. Galvanized layer can also be chromic acid passivation treatment into a variety of colors, beautiful and generous, with good decorative; The zinc layer on the galvanized wire has good ductility, can be cold blanking, rolling, bending and other molding without damage to the zinc layer.

    drywall screws exterior use

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    drywall screws exterior use drywall screws exterior use

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  • drywall screws exterior use

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    drywall screws exterior use drywall screws exterior use

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  • drywall screws exterior use

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    drywall screws exterior use drywall screws exterior use

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    drywall screws exterior use

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    drywall screws exterior use drywall screws exterior use

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  • drywall screws exterior use

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    drywall screws exterior use drywall screws exterior use

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  • During this process, each time the wire is pulled over, the surface hardens due to the high friction temperature. So basically every time you pull it you have to annealing it in the furnace. On the one hand, it is to reduce the surface hardness. On the other hand, during the process of wire pulling, only the surface is deformed, and the center is unchanged. So there’s a lot of stress inside. Therefore, it is necessary to rely on annealing to eliminate the internal stress, so that the wire becomes soft again to eliminate the stress before being drawn again.

    drywall screws exterior use

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    drywall screws exterior use drywall screws exterior use

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