Metallizing
Metallizing is a process that is often used to treat metal fences to make them more corrosion resistant.
It's an alternative to galvanizing, and instead of submerging the item in a tank as they would with electro or hot dip galvanizing, this method uses a molten metal spray to coat the metal fencing components.
Like galvanizing, metallizing requires specialized equipment, but it does not require a metal bath, which may make it easier for companies to do in house.