Air-conditioner, full name evaporative cooling fan, also known as air cooler, water-cooled air conditioner, industrial air conditioner, negative pressure fan, water curtain cooler, energy-saving environmental air-conditioning, water air-conditioning, air-conditioning fan. The electricity consumption per hour is only one-eighth of that of conventional air conditioners. Air-conditioners have been in Australia and Europe and the United States for 50 years. They have been introduced to China for 10 years and are used in factories and supermarkets. The appearance of household machines in the past two years has made the air conditioners have a wider range of functions. Industrial Overhead Door,Vertical Lifting Door,Vertical Sandwich Door,Industrial Overhead Lifting Doors Dongguan HengTaichang Doors Co, Ltd. , https://www.dghtcdoors.com