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Date: 2011-05-03 02:47:24Insulators Building insulation materials Heating ventilating and air conditioning Refrigerants Thermal protection Polyurethane Chlorofluorocarbon Blowing agent Methyl formate Chemistry Mechanical engineering Chemical engineering | Add to Reading ListSource URL: ozone.unep.orgDownload Document from Source WebsiteFile Size: 2,77 MBShare Document on Facebook |