In the sectors of steel and metal they are composed of producers and processors of metals, which are dependent on the supply of mining. For this project, and is responsible for the production of steel, which is the result of the mixture of the iron is heated with carbon, as the metalworking process a number of metals available to you, such as aluminum, copper, tin, zinc, lead, among other things.

In Brazil, at the park of the steel consists of 30 power plants are operated by large corporations, directly employs about 120 million people, with an annual turnover of a value in excess of 200 million pounds, while the chain of metallurgy has about 150 thousand companies, employing approximately 660 thousand people directly, and more than 2.4 million workers indirectly, is responsible for one of the biggest parts of the country's GDP.

The cooling tower water is commonly used for steel and metal fabrication, to control the temperature of the equipment is in the process of die-casting and machining, thus cooling the circulating water and the lower high temperatures are reached.