The report, which was highly technical in nature, considered a group of HFCs and HFC blends (including HFC-134A, HFC-32, R-404A, R-407C, R‐410A and R-422B, and HFC-1234yf), hydrocarbons (HC-290, HC-600a and HC-1270), ammonia (R‐717) and carbon dioxide (R-744) as possible alternatives to HCFCs.
¿ Por qué no haces como Henry?UN-2 UN-2