CLEANING OF THE OFFICES, PHILHARMONIC THEATRE, PHILHARMONIC HALL, LABORATORIES, REHEARSAL ROOMS AND TICKET OFFICES OF THE ARENA FOUNDATION FROM 01.01.2024 TO 31.12.2026
CLEANING OF THE OFFICES, PHILHARMONIC THEATRE, PHILHARMONIC HALL, LABORATORIES, REHEARSAL ROOMS AND TICKET OFFICES OF THE ARENA FOUNDATION FROM 01.01.2024 TO 31.12.2026