... , refrigeration condensing units, supermarket display display cabinets. R22 can also be used in the production of a ... , refrigerants, refrigerant) common model is divided into: R10, R11, R12, R22, R32, R123, R124, R125, R134, R134a, R141b, R142b, ... R507, R600, R600a, MR502, MR404a, MR407c, MR410a dichloromethane, R12 alternatives --- MR12, R134a substitute ...... and other models.Refrigerant Freon, ...