Tender Announcement From: Contracting Board Of The Ministry Of Industry, Commerce And Tourism. Purpose: Maintenance Service For Low Voltage, Audiovisual Installations, Transformation Centers And Other Buildings Of The Cuzco Ministerial Complex, Located At Paseo De La Castellana, 160-162, Avenida Alberto Alcocer 2 And Calle Panamá 1 In Madrid. (EXPIRED)