Premise: Europrop International GmbH (EPI) is a joint venture among four European aircraft engine manufacturers, MTU Aero Engines, Snecma, Rolls-Royce, and Industria de Turbo Propulsores. The company's sole product is the Europrop TP400-D6 7970 skW/10,690shp turboprop developed for the Airbus A400M Atlas.
Hypothesis: The compnay best sell product is the EuroproTP400.