1.auto air conditioner 2.reasonable good price 3.OE supply to Yutong.zongda bus 4.Spare parts easy be get ,easy be Roof top ... mounted auto air conditoner for 10-11m bus,coach ... , operation,maintenanceDosn't hover , 12-27 months warranty,standard spare parts ,easy be got ,in marketing priceReliable performance . CORUNCLIMA, always been ...