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  • ⑹ can not open the groove 1 ~ 6mm thick metal sheet single-side welding double-sided forming.

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  • Hot dip galvanizing is in the hot melt zinc liquid dip plating, production speed, thick but uneven coating, the market allows the low thickness of 45 microns, up to 300 microns above. It is dark in color, consumes more zinc metal, forms infiltration layer with base metal, and has good corrosion resistance. Hot dip galvanizing can be maintained for decades in outdoor environment.

    drywall strip screws

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    drywall strip screws drywall strip screws

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  • drywall strip screws

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    drywall strip screws drywall strip screws

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  • drywall strip screws

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    drywall strip screws drywall strip screws

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  • The management system of the rinsing water after the steel wire pickling should be regularly and regularly discharged after the rinsing water, and the rinsing water should be kept clean and low acid value as far as possible. The pH control is more appropriate. The concentration of plating aid should not be too high. Hot plating wire must be added ammonium chloride and zinc chloride according to the data of laboratory analysis, and the specific gravity of the composite solution is controlled in the range of 50~80g/L. The addition of ammonium chloride or zinc chloride raw materials without the results of laboratory analysis shall be subject to criticism and education, and economic treatment if necessary.

    drywall strip screws

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    drywall strip screws drywall strip screws

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