... , 低温降DFN series,降5或8度 1. square counter flow low noised water pond free type方形无水盘:DFNL-100, 150 ... 500, 600,750,900,1050 2. square counter flow low noised shallow water pond type浅水盘:DFNDP-100, 150, ... 中高温降, GFN series,降10或20度 1. square counter flow water pond free type:GFNL-75, 100,150, ... life etc. The motor adapted is especially for outdoor vertical cooling towers, which is energy saving, high efficient ...