-Use method of coating iron To prevent exposure to water and air, steel meat directly, such as painted. Namely the tin plating, zinc, this method often use small or medium the disadvantages of this method is that this type of coating can come off easily, both physical and chemical and coating some rust faster acceleration, such as Tin, etc. -Use a how to make a stainless steel (Stainless steel) by the addition of other elements that could cause the layer thin film based on surface of steel, such as chromium, nickel, these will be able to create a thin film on the surface of steel implants. Helps prevent the meat with the direct steel coating, this type of this both physical and chemical durability of stainless steel there are many grades, each grade it to the mixture. Depending on the operational requirements for each category. -How to protect cached master Digby by using metal corrosion. The work piece must be bound to prevent rust. The metal is increasingly used as a corrosion resistant metals such as aluminum, magnesium, zinc, amino, Lu made to scrub it off and. -Use how to use electric current to voltage higher than steel, with nearby (English: Impressed Current), which makes steel does not result in losing electrons and become rusty. This can prevent rust environments but cost wasung and requires electricity source, which isn't convenient, so migration to frog suits big structure that must be running in the environment where the risk of a severe, such as rusting pipes buried underground pipelines under the sea, etc.
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