... all Honeywell/DuPont/Forane Refrigerant Gas,such as : 1. R-134a,R-22,R-23 2.R404a,R-406a,R-407C,R-410a 3.R507,R-502 R134A ... the sex without corrosion), The heat transfer performance comparison 134a R, so close to the refrigeration system flow easily. The heat ... transfer performance than 134a R R, therefore the 12 can greatly reduce the dosage of refrigerant ...