1.High efficiency, save energy; 2.Compact structure 3.Easy to clean, convenient to remove and installation 4.Long use life It is widely ... so on.Features:High efficiency, save energy;Compact structure Easy to clean, convenient to remove and installation 4. Long use lifeHeat Exchange Area ... .6, 1.0, 1.6Diameter of Angle Hole (mm)80 C4 series Plate Type Heat Exchanger