Which industries are related to cryogenic fluids?

In a refrigeration unit that operates by indirect cooling, the substance that transfers the heat from the object to be cooled to the evaporating refrigerant is called a coolant. The coolant is usually a liquid, and it generally does not undergo phase change during heat transfer. However, some refrigerants are gases or liquid-solid mixtures, such as binary ice. Common refrigerants include water, brine, ethylene glycol or propylene glycol solutions, dichloromethane, and trichloroethylene; chlorodifluoromethane is generally not included, as it is typically used as a refrigerant. A refrigerant is only used as a refrigerant medium when direct cooling is required. Direct cooling requires large amounts of refrigerants, which are generally not environmentally friendly, such as Freon and ammonia; therefore, indirect cooling is an energy-saving and environmentally friendly method.

I basically know what you’re talking about; I just want to know which industries are related to refrigeration and use refrigerants! ! Pharmaceutical industry? Or something else?

I basically know everything you mentioned; I just want to figure out which industries are related to refrigeration and can use refrigerants Pharmaceuticals? ?