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Boilers are normally used to produce water/steam for different industrial manufacturer. They are used as part of a heating system or individually to heat up water. Examples of where boilers are largely used include food processing plants, bakeries, breweries, drug producing plants and mining industries. They are powered by electricity, natural gas or oil and are normally made of stainless-steel, copper or iron. Chrome steel is used in sensitive processes to prevent reactions and contamination, like food and pharmaceutical plants.