American Marley, Japanese Morality, Taiwan Province Opportunity, Taiwan Province Golden Day, Hong Kong Zero, Hong Kong Mingxin, etc. Cooling tower manufacturers are generally divided into South Tower and North Tower: North Tower represented by Qinyang in Henan, Dezhou in Shandong and Zaoqiang in Hebei (design parameter is wet bulb temperature 27); The wet bulb temperature in Dongguan, Guangdong Province is mostly 28 degrees. Representative manufacturers include rhombic cooling tower manufacturers such as Lingdian, Zhu Ling, Ke Ling, Dongling and Baling, and manufacturers such as Ji You Risheng and Mingxin pay more attention to quality.