3 4 drywall screws

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3 4 drywall screws

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3 4 drywall screws 3 4 drywall screws

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  • 2. If the surface of the stainless steel pet cage is adhered to organic juice (such as melon, vegetable, noodle soup, phlegm, etc.), in the case of water and oxygen, it constitutes organic acids, and the corrosion of organic acids on the metal surface for a long time.

    3 4 drywall screws

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    3 4 drywall screws 3 4 drywall screws

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  • Galvanizing can be done by zincate galvanizing or chloride galvanizing. Appropriate additives shall be used to obtain a coating that meets the requirements of this standard. Luminescence treatment should be carried out after luminescence plating. The parts that need to be dehydrogenated for passivation should be passivated after dehydrogenation. Before passivation, 1%H2SO4 or 1% hydrochloric acid should be applied to activate 5~15s. Passivation shall be treated with colored chromate unless otherwise specified in the design drawings.

    3 4 drywall screws

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    3 4 drywall screws 3 4 drywall screws

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