Stationary Electric Compressors Market – Global Industry Size, Share, Trends, Opportunity, and Forecast, Segmented by Product Type (Positive Displacement Compressors, Dynamic/Centrifugal Compressor), By Power Rating (Up to 100 kW, 101-300 kW, 301-500 kW, Above 500 kW), By End-Use Industry (Oil & Gas, Power Generation, Manufacturing, Chemical & Petrochemical, Others), By Region, By Competition 2019