Global Heat Exchanger Market – Analysis and Forecast (2021-2027) Industry Insight by Material (Steel and Non-Steel), by Type (Plate & Frame Heat Exchanger, Shell & Tube Heat Exchanger, Air-Cooled Heat Exchanger, and Others), by Industry Vertical (Chemical, Energy, HVACR, Food & Beverages, Power Generation, Pulp & Paper, and Others), and Geography (U.S., Canada, Germany, U.K., France, China, Japan, India, and Rest of the World)