Design And Execution Of Works Related To Investment Objectives Lot 1: Design And Execution Of Works Related To The Investment Objective "Modernization Of The Caransebeș Railway Line - Tm - Arad, Lot 3 Tm Est - Ronaț Trij G.D" Lot 2: Design And Execution Of Works Related To The Investment Objective "Modernization Of The Caransebeș Railway Line - Tm - Arad, Lot 4 Ronaț Triaj Gr. D - Arad"