Bus Copper Strip Machine,Interconnection Copper Strip Equipment,Photovoltaic Copper Strip Annealing Equipment,Copper Strip Corrosiveness Laboratory Equipment Jiangsu Lanhui Intelligent Equipment Technology Co., Ltd , https://www.lanhuisolar.comAs we approached May, we also ushered in the annual air-conditioning hot season. Recently, a friend around the author after purchasing a certain brand of air conditioner, can not be used in succession, after a number of failed repairs have to return. B: A product that has been repaired twice or more due to a performance failure within one year from the date of purchase.