Karopqa yeni yigilib, amartizator, apora, karbirator, toplar, baraban, akumliyator elave chox detal deyiwib xadavoy ela. Mator ela, yagi, filtiri yeni deyiwilib. Yag azaltmir. Xirda para elave vacib olan xercleri odenilib. Senedleri qaydasinda, sigorta texsmotr var. Barter olar.