... exchanger core:Sensible heat exchanger core(counterflow)-air exchanger aluminium coreair exchanger aluminium coreCharacteristic:Application on room ventilator systems or ... efficiency and less resistant of flowSpecial coat on Aluminium to resist erode.The heat exchangers consist of ... number,ZL200420116088.5,ZL200420116089.XTypeA(mm)L (mm)B (mm)RemarkHRC9090300,350,400,450 Required HRC140140300,350 ...