... , mushroom etc. Factory introduction Zhejiang Qingfeng Refrigeration Equipment Manufacturing Co.,LTD, is subsidiary of KingFit group in east China, ... COP reach over 5.34. Energy saving: Use QINGFENG own R & D Energy-economizer: water chiller can save ... screw style compressor, Qingfeng patent flooded evaporator, condenser, energy-economizer electronic expansion valve and protection device. Refrigerant: ...