The preparation of the project, this time with the purpose of pursuing ways to prevent and reduce the rate of steel corrosion reactions that cause rust. By using materials that can be obtained is not difficult. Common market or, as local and as natural materials such as vegetable or animal products, whether as an egg or milk by kai in the experiment, this time we came to the three types of tomatoes, coffee and microflora in experimental drugs with khun is cleaned and polished steel successfully with the weighing then mixing sodium chloride with inhibitor and steel to dip in a mixture of substances in 24 hours when cleaning the steel and maturity, weighing it again to compare the weight before trials.
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