Technological processes for the production of superhard grinding wheels (abrasives) in the shops of the Leningrad abrasive plant "Ilyich". Ready-made abrasive wheels with the brand of the plant. Construction of the Kirovsky Zavod underground metro station. Drivers are working. Underground track. The city of Leningrad. Pavilions of the All-Russian Wholesale Fair. Products presented at the fair: shoes, dishes, building materials, toys, musical instruments and others. Representatives of organizations draw up a trade agreement. Speech by the orchestra of folk instruments of the Zhdanov Izhora Machine-Building Plant. The audience applauds.