On May 1, the world\'s first pair of hydrocarbon refrigerants R290 (commonly known as \"propane) split type air conditioner demonstration line in gree electric appliances (000651) formally completed, and smoothly passed the china-germany joint panel site acceptance, the two countries reached the international leading level. This marks the industry watches R290 refrigerant air conditioning will be officially production, is also the Chinese enterprise in the new refrigerant technology on the research and application of leading enterprises in the international for the first time. It is reported, in 2009, the German government through its subsidiary of Germany international cooperation (GIZ) and state environmental protection agency, China home appliance association cooperation intention, and aid to the gree electric appliances, 1.05 million euros, for R290 refrigerant air conditioning design and form a production line, production line design annual production capacity of 100000 units. According to sino-german joint expert group, gree R290 refrigerant air conditioning all parts adopt unique security design, owns more than ten patents, independent research and development of R290 refrigerant is special high efficiency compressor, the air conditioning machine up to national grade 1 standard of energy efficiency. This production line can produce fixed frequency, frequency of household air-conditioners, mobile air conditioning, the window machine, smoke R290 refrigerant wet machine, and other products. At present, the production line has been the eu\'s strict German TUV safety certification. The gree R290 refrigerant air conditioners are mainly exported to the eu market at present, the first batch of products have been in May this year in the maldives. (source: xinhua)