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Alcoa Howmet Castings has entered into a long-term agreement with Rolls-Royce to supply it with investment castings for a range of aerospace products, in both civil and defense designs. The agreement covers more than 80 components from Rolls' current line of investmentcast turbine products for the Trent 500, 700, 800, and EJ200, RB211, T56, AE3007, 501, and 250 engines.