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small head drywall screws small head drywall screws

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  • Different from the general zinc barbed rope, the zinc content of the surface of the high zinc barbed rope is very high, which can reach 6-8 times of the former, so that it has a great advantage in service life. Ordinary products begin to corrosion in three or five years, while the latter takes longer time to change.

    small head drywall screws

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    small head drywall screws small head drywall screws

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  • small head drywall screws

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    small head drywall screws small head drywall screws

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  • small head drywall screws

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    small head drywall screws small head drywall screws

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  • small head drywall screws

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    small head drywall screws small head drywall screws

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  • Cold galvanized wire refers to a process in which ordinary steel wire is treated by cold galvanized and a zinc layer is attached to its surface. Cold galvanized wire has the advantages of anti-corrosion and anti-wear, and is widely used in construction, machinery, automobile, electronics and other industries. The following will introduce the production process and flow of cold galvanized wire.

    small head drywall screws

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    small head drywall screws small head drywall screws

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  • The management system of the rinsing water after wire pickling should be discharged regularly and regularly, and the rinsing water should be kept clean and low acid value as far as possible. It is more appropriate to control the pH value of 3. The concentration of plating aid should not be too high. The hot plating wire must be added with ammonium chloride and zinc chloride according to the data of laboratory analysis, and the specific gravity of the composite solution is controlled within the range of 50~80g/L. If ammonium chloride or zinc chloride is added without reference to the results of laboratory analysis, it should be criticized and educated, and economic treatment should be given if necessary.

    small head drywall screws

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    small head drywall screws small head drywall screws

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    small head drywall screws

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    small head drywall screws small head drywall screws

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  • small head drywall screws

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    small head drywall screws small head drywall screws

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