Inside a metal-clad tower at the gas technology Institute in suburban Des Plaines, Ill. sits a narrow, 40-foot steel tube bristling with instrumentation ports and pressurized pipes.

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In addition, it makes carbon and stainless steel tubular products through AK Tube.

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Nevada Solar One uses a parabolic trough design, in which curved mirrors, 16 feet from top to bottom, concentrate the sun's rays onto a glass tube with a steel bar at its center.

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Eximbank loans made in 1985 for several meat-processing plants, copper-processing facilities, a turnkey chemical complex, a color-television tube plant, a glass funnel facility, a process computer used in steel manufacturing, and a tractor factory remain unpaid.

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