Use of material on the steel construction in every field of construction has made a profitable alternative, because the power and ease of formation and very economical in terms of the current cost of construction and use of steel construction has covered a very wide field.

However, there is a weakness of character that is the nature of the steel is susceptible to corrosion or rusting that is the result of electro-chemical process, thus requiring the prevention of corrosion or rust to the maximum so as not to cause economic loss, it also prevents against threats that can endanger human life.