The effect of dispersed particles of lamellar molybdenum. tungsten and vanadium oxides on the lubrication properties of mineral oil was investigated. It is shown that in the presence of particles of hexagonal molybdenum oxide the coefficient of friction falls two-fold (from 0. 08 to 0. https://www.tandylsathers.shop/product-category/one-of-a-kind-hair-on-hides/