The development of polyurea greases based on paraffin-naphthenic lubricating oil VHVI-4D.I. Daudi, A.Y. Kilyakova, O.A. Kalyanova, A.F. Korotaev and K.G. AleksanyanE3S Web Conf., 266 (2021) 02017DOI: https://doi.org/10.1051/e3sconf/202126602017