aerial view of sewage treatment plant in winter in Poland aerial view of sewage treatment plant in winter in Poland Air cooled water chiller with pipework Painted Yellow Guard Rails on a Staircase heat exchanger at an oil refinery, large size, daylight. Deep processing of oil Snow plows in severe blizzard preparing for storm clearing street driving Bobcat S650 skid steer loader for removing snow in parked at the side of city street. Helsinki, Finland. January 18, 2021. air conditioner cooling towers on a roof heat exchanger at an oil refinery, large size, daylight. Deep processing of oil refrigerating unit for realization chilled water in an industry