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![]() Date: 2011-05-03 03:25:32Insulators Building insulation materials Heating ventilating and air conditioning Refrigerants Thermal protection Polyurethane Chlorofluorocarbon Blowing agent Methyl formate Chemistry Mechanical engineering Chemical engineering | Source URL: www.unep.chDownload Document from Source WebsiteFile Size: 2,77 MBShare Document on Facebook |