Implementation of construction works, preparation of the execution design, and execution of construction works for the installation of railway traffic control equipment, railway telecommunications network facilities, and a dynamic passenger information system on the Katowice Szopienice Płd. – Katowice – Katowice Piotrowice section, within the framework of the project “Works on main passenger lines (E 30 and E 65) (...)”

PKP Polskie Linie Kolejowe S.A.