Service Contract For Technical Assistance For Drafting The Layout Project And Construction Project. Improvement Of The Road Junction Between The Ap-7, The B-30, The C-58 And The N-150. Barberá Del Vallés - Cerdanyola Del Vallés - Badía Del Vallés - Ripollet. Keys: Pt-Cpb-21075.F1 And Pc-Cpb-21075.F1