Provision of crane equipment for the replacement of technological pipelines and technological equipment under the projects entitled "Changing of technological pipelines at the Saratov NPP facilities and "Changing of physically worn equipment in the main PAO productions" Saratov NPP": "Listing 2021: Replacement of the D-604 refrigerator, Replacement of the Separator C 606, Replacement of the Separator C 607, Replacement of the Separator C 611, Replacement of the Sepairer C-14, Replacement of t