A film about the regeneration of waste petroleum oils. 1h - Testing the spindles of spinning machines on a friction machine in the central laboratory of the Office of the Cotton Industry in Leningrad. Waste oil recovery at regeneration plants. 2h - Recovery of automotive and aviation oils at the VIME-2, Selkhoz, Acid-earth regeneration units. 3h - Oil regeneration at the Moscow Sharikopodshipnik plant, Trekhgornaya Manufaktura plant, Rabochiy plant. 4h - Application of filtering elements "ASFO" for continuous cleaning of oils in internal combustion engines on cars "Pobeda".