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·        GE (Europe ) until 2004

·        Thermodyn ( France ) until 2004

·        GE Transportation (USA) until 2004

·        Nuovo Pignone ( Italy ) until 2004

·        Bombardier ( Germany , Hungary )

·        DE-Consult  ( Germany )

·        Nacap GmbH (Germany, former Südrohrbau)

·        NEM ( Holland )

.        Hamon Thermal Europe S.A. (Belgium)