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  • Hard black galvanized iron wire is made of low carbon steel wire by wire drawing machine. Hard black galvanized iron wire is the first feature of high hardness, bright appearance. It is mainly used for welding clothes hanger, umbrella, metal mesh, basket, basket and other metal products. Soft black galvanized iron wire is made of low carbon steel wire after annealing and softening, and then cold drawing. Soft black galvanized iron wire is the first feature of good flexibility, slightly higher hardness, bright appearance. Mainly used for metal mesh weaving technology, welding net, process products of welding.

    flat head drywall screws

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  • There is no adhesion test of powder spraying or fluorocarbon spraying on packaged galvanized wire, but there are two points for reference: first, in sealed or air-free environment, non-metallic volatiles can corrode zinc coating; Second, zinc at higher than 230 degrees (c) will cause the matrix metal brittle. And powder spraying and fluorocarbon spraying are to be baked at a higher temperature and in a sealed environment, causing rapid corrosion of zinc, resulting in loose corrosion film resulting in coating adhesion decline, and even lead to (matrix) steel wire brittle situation may exist.

    flat head drywall screws

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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.

    flat head drywall screws

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    flat head drywall screws flat head drywall screws

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  • There are many types of steel wire mesh that can achieve the effect of fencing, but there are not many options to take into account the cost. For this kind of light poultry fence, it is recommended to use Dutch steel wire mesh. Most users call it green steel wire mesh.

    flat head drywall screws

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    flat head drywall screws flat head drywall screws

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  • flat head drywall screws

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    flat head drywall screws flat head drywall screws

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  • The weight calculation method of hexagonal net is: the weight calculation method of hexagonal net: silk meridian.× silk meridian.× base x length x width ÷2=kg base: 1/2′=2.151′=1.273/4′=1.65/8′=1.875/4′=1.091′x1/2′ : 3′=0.4 silk warp. x silk warp. X 2x length x width ÷8×3=kg

    flat head drywall screws

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    flat head drywall screws flat head drywall screws

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  • Post time: 16-06-22

    flat head drywall screws

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    flat head drywall screws flat head drywall screws

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  • Post time: 16-09-22

    flat head drywall screws

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    flat head drywall screws flat head drywall screws

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