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Date: 2015-01-13 04:24:32Nitrogen Chemical elements Nonmetals Heating ventilating and air conditioning Dry ice Liquid nitrogen Coolant Carbon dioxide Dangerous goods Chemistry Matter Refrigerants | Microsoft Word - Internet Cooling Agents[removed]Add to Reading ListSource URL: www.efbs.admin.chDownload Document from Source WebsiteFile Size: 51,60 KBShare Document on Facebook |