"Condotte - Progettazione e costruzione." . . "Rohrleitung." . . "Tubi - Supporti - Progettazione e costruzione." . . "Conductors elèctrics." . . "Rohrleitungsbau." . . . . . . . . . "Piping and pipe support systems : Design and engineering" . . . . . . . . . . . . . . . . . . . . "Piping and Pipe Support Systems : Design and Engineering" . "Piping and pipe support systems : design and engineering" . . . . . . "Tuberías." . .