Cryogenic refrigeration directly uses refrigerants such as liquid nitrogen or solid carbon dioxide. Cryogenic freezing is often treated as a stand-alone freezing method, but is essentially an immersion/spray system, depending on how the cryogen is used.
The following suppliers offer Cryogenic refrigeration products.
You can send a request to the suppliers listed above and save a lot of time. You only need to specify your requirements, which will be sent to the selected suppliers. They will contact you with proposals without any obligation.