Summary:How to prevent rust in the lock head of metal lock ？
We can generally plate a layer of metal on the surface of the lock head, such as zinc, tin, chrom......
How to prevent rust in the lock head of metal lock ？
We can generally plate a layer of metal on the surface of the lock head, such as zinc, tin, chromium, nickel and other metals that are not easy to rust, and we can use hot plating or electroplating.
After plating these metals, there is a dense oxide film on the surface of the lock head, so that the lock head which is easy to rust has a protective layer, which effectively prevents it from rusting when it comes into contact with air, water and other substances.
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