Aluminum plate fin heat exchanger has the advantages of high efficiency, small volume, light weight and good applicability.which is extensively used industrial and agricultural production applications. They are mainly applied in fields as following: Power generators, such as wind power generator, water power generator, portable generator, etc. Customized cooling solution basing on customer's engine data, which includes coolers(oil cooler, radiator, intercooler), tubes, iron supports, expansion tank, fans, fan motor, shroud and fan guard, etc.