In the production process of pharmaceuticals and chemical products, in order to ensure product quality and safety, or to produce a product that can only be produced at low temperatures, or to require low-temperature condensation and recovery of extractants at the end of a certain production process, and other similar situations, a low-temperature environment is required, which relies on low-temperature industrial chillers to provide stable and durable low-temperature cold sources. Low temperature, large cooling capacity, and stable performance are the biggest features of the "Oklon" brand medium and low temperature industrial chillers provided by our company. We have successfully solved the specific requirements of various application conditions, such as the production of sulfur hexafluoride, pharmaceutical intermediates, fluororubber, and the condensation recovery of extraction agents such as acetone, ether, n-hexane, methanol, etc.