fire rated drywall screws

fire rated drywall screws

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  • Galvanized iron wire has excellent endurance and elasticity, zinc can reach 300 grams/square meter. It has the characteristics of thick galvanized layer and strong corrosion resistance. Widely used in construction, handicrafts, wire mesh, highway guardrail, commodity packaging and ordinary civilian and other categories.

    fire rated drywall screws

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    fire rated drywall screws fire rated drywall screws

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  • Good galvanized wire, plating thickness of 3- 4 mm, zinc adhesion should be less than 460 grams/m, that is, the average thickness of zinc layer is not less than 65 microns. When the thickness of plated parts is greater than 4 mm, the zinc adhesion should not be less than 610 g/m, that is, the average thickness of zinc layer should not be less than 86 microns. Standard galvanized wire coating must be uniform, galvanized layer basically uniform with copper sulfate solution test etching five times no dew iron. For standard galvanized wire coating adhesion requirements, the zinc layer of plated parts should be firmly combined with the basic metal and have enough adhesion strength, after hammer test does not fall off, not convex.

    fire rated drywall screws

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    fire rated drywall screws fire rated drywall screws

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  • fire rated drywall screws

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    fire rated drywall screws fire rated drywall screws

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  • fire rated drywall screws

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    fire rated drywall screws fire rated drywall screws

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  • galvanized

    fire rated drywall screws

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    fire rated drywall screws fire rated drywall screws

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  • The advantages of hook net hook net raw material resolution of its use, used for road guardrail, sports stadium fence, etc., because the weaving characteristics of hook net can make the guardrail both beautiful and useful, have a good ability to hit, and can extend the service life, not easy to fade to prevent the effect of beautiful. And can also be used for family interior decoration, because its plasticity is very good so the use is also very much, is now many local are widely used.

    fire rated drywall screws

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    fire rated drywall screws fire rated drywall screws

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  • First, the commonly used stainless steel plate is divided into two types of 201 and 304, the actual composition of the Nestor cage is different, 304 stainless steel Nestor cage quality is better, but the price is expensive, 201 is worse. Anping 304 for imported stainless steel plate, Anping 201 for domestic stainless steel plate.

    fire rated drywall screws

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    fire rated drywall screws fire rated drywall screws

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