Repair and Maintenance of the telecommunication Systems of the Esfahan Metro Line 1
Mapna Rail Construction & Development Company
تعمیرات و نگهداری تامین توان خط یک مترو اصفهان
شرکت احداث و توسعه ریلی مپنا
Repair and Maintenance of the Power Supply of the Tehran Metro Line 3
Repair and Overhaul of the Overhead Catenary System of the Tehran Metro Line 5