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替代Ｒ－２２和Ｒ－５０２的ＨＦＣ混合工质最新进展最近，美国四家制冷剂生产大公司，经过广泛研究，据称已经取得了替代Ｒ－２２和Ｒ－５０２的最佳ＨＦＣ混合工质，并且看来，有排除用单一工质作为替代品的趋势。这四家公司是：联合公司（ＡｌｌｉｅｄＳｉｇｎａｌＩｎ...
Recent Developments in HFC Mixtures Replacing R-22 and R-502 Recently, four major U.S. refrigerant producers, after extensive research, reportedly achieved the best HFC mixes to replace R-22 and R-502 It seems that there is a tendency to exclude the use of a single refrigerant as a substitute. These four companies are: AlliedSignalIn ...