Hangzhou Kelin Aier Qiyuan Equipment Co., Ltd. is established in 1997, dedicated in high quality compressed air dryer, refrigerated air dryer, desiccant air dryer, air filter, PSA nitrogen generator, PSA oxygen generator and industrial water chiller. We provide customers with a full range of innovative, problem-solving products to make customers' production more safer, more reliable and more economical. In the meanwhile, we also provide customized solutions to meet customers' different requirements. Kelin Aier has three independent factories to produce different product. After 14 years' fast development, Kelin Aier has became the leading manufcturer of compressed air dryer treatment in China. We belive quality, innovation and service are important factors that keep us competitive in the global market. Today, we have established 13 branch offices in major China cities, more than 200 distributors in China. Products have been sold to more than 40 countries.