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![]() Date: 2013-07-23 04:42:15Heat pumps Propellants Water pollution Phosgene Vapor-compression refrigeration Flame test 1 1 1 2-Tetrafluoroethane Flame Fluorine Chemistry Refrigerants Heating ventilating and air conditioning | Source URL: www.ttclub.comDownload Document from Source WebsiteFile Size: 356,79 KBShare Document on Facebook |