Aselsan, which modernizes metro vehicles in the Ankara Metropolitan Municipality/EGO inventory with domestic and national electronic products and systems, thus providing the use of vehicles for another 20 years, preferred domestic and national YAZKAR air conditioners designed in accordance with Ankara climate conditions for the air conditioning systems of Metro vehicles. In this way, the domestic contribution rate in vehicles will be increased to over 85 percent, ending dependence abroad on critical systems that will be used for national and domestic metro, regional trains, high-speed trains and locomotives.