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  • In addition, galvanized silk manufacturers can be required to passivation treatment after zinc immersion, after passivation treatment of zinc has a better anti-discoloration effect, can effectively extend the time of discoloration, the combination of the two, discoloration should be able to solve.

    black expanded metal

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  • 4. When cleaning the cage, remember not to brush violently, but pay attention to the strength. Otherwise easy to damage the surface of the paint layer.

    black expanded metal

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