In May 2007, IET joined the Doncasters family.

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IET manufactures a broad range of advanced cooling structures, components and systems for customers around the world. We lead the industry in technical manufacturing competencies because of the strength of our manufacturing processes, proprietary techniques and investments in state-of-the-art equipment. Our core competencies include precision machining, metal forming and spinning, fabrication and diffusion bonding. Our specific manufacturing capabilities include electro-chemical milling; laser cutting and drilling; drop hammer, hydraulic and hydro forming; and, robotic welding.

We are experts at working with a broad range of materials such as high temperature super alloys, nickel alloys and stainless steel. Together with our unique processes, we build components and systems for the most extreme environments – including those with heat extremes in excess of 3000 degrees! Our internal standards call for material specifications and tolerances that not only meet but often exceed our customer's requirements. With our combination of advanced equipment and highly trained personnel we have the ability to build and assemble almost any component or system.