Robuta

https://docs.lib.purdue.edu/icec/1227/ "Elastohydrodynamic Lubrication Properties of Polyol Ester Lubricants-R" by U. J. Jonsson and K. C.... By U. J. Jonsson and K. C. Lilje, Published on 01/01/98 u j k c elastohydrodynamic lubrication properties