A metal-forging press made in Germany in the 1930s and transported to the U.S. is still doing a fine job making dies for aircraft wheels and brakes at Alcoa. The longevity of the press demonstrates how manufacturers tend to stick with equipment that's still working even though decades old. Updates do sometimes come in the form of new electronics and control systems. However, some say that sticking with the old means that companies are missing out on new opportunities.

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