1, FULDA (research / production / operation in one of the national high-tech enterprises, Shandong Province, Shandong Province, a famous trademark, China's ground source heat pump leader, Shandong FULDA Air Conditioning Equipment Company Limited)
2, Hongli (Shandong Province, Shandong Province, a famous brand, the National Torch Plan key high-tech enterprises, the backbone of the domestic heat pump industry, Shandong Hongli) Ltd)
3, Clement Jet (in 1971, multinational corporations, one of the main members of the European Cooling and Heating Association, the industry enjoys a high reputation, Clement JieLian refrigeration equipment (Shanghai) Co.
4, U.S. (in 1935 in the U.S., belongs to the U.S. Nortek group of companies, the top ten brands of ground-source heat pumps. Ltd)
5, Tsinghua Tongfang (the earliest commitment to the development of heat pump energy-saving air conditioning industry navigator, held by the Tongfang shares of the large-scale high-tech companies, Tongfang Artificial Environment Co.
6, Keling (National High-tech Enterprises, Shandong Famous Brand, a number of standards drafting unit of the heat pump industry, a member of the Refrigeration Industry Association of China, China) Ltd)
7, Maple Leaf Energy (in 1983 in Canada, Canada ground source heat pump energy saving and environmental protection in the field of energy saving and famous application system suppliers, specialized high-tech companies, Jiangsu Maple Leaf Energy Technology Co. Ltd)
9, Beilette (Shandong Province famous trademark, Shandong Province famous brand, China Institute of Refrigeration unit member, one of China's largest central air-conditioning production base, Beilette Air Conditioning Company Limited)
10, Yongyuan (committed to energy saving, environmental protection, air-conditioning products, the development and use of enterprises, Beijing high-tech enterprises, geothermal energy technology Co. Beijing high-tech enterprises, ground source heat pump top ten brands, Beijing Yongyuan heat pump limited liability company)
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