Russia Gas Generator Market Size, Share and COVID-19 Impact Analysis, By Power Rating (Up to 100 kVA, 100-350 kVA, 350-750 kVA, 750-1000 kVA, 1000-2000 kVA, 2000-3000 kVA, and Above 3000 kVA), By End-user (Mining, Data Centers, Construction, Manufacturing, Tourism/Hospitality, Oil & Gas, Residential, Agricultural/Greenhouse, Water Treatment/Landfill, Power Utilities, Cold Storage Warehouse, and Others) and Forecast, 2021-2028