Chlorofluoromethane or Freon 31 is a gaseous mixed halomethane.
R-phrases (short for risk phrases) are defined in Annex III of European Union Directive 67/548/EEC: Nature of special risks attributed to dangerous substances and preparations.
The Nissan Skyline (Japanese: 日産・スカイライン Nissan Sukairain) is a line of compact cars, sports cars and compact executive cars originally produced by the Prince Motor Company starting in 1957, and then by Nissan after the two companies merged in 1967.
RSM-45 R-31Korabli VMF SSSR, Vol.
The R31 is a provincial route in South Africa that connects Kimberley with the Namibian border via Kuruman and Hotazel.
The R31 class of British rigid airships was constructed in the closing months of World War I and comprised two aircraft, His Majesty's Airship R31 and R32.
The Renard R.31 was a Belgian reconnaissance aircraft of the 1930s.
The Renault R31 was a Formula One racing car designed by Lotus Renault GP for the 2011 Formula One season.