| 摘要 |
PURPOSE:To produce the subject cooling medium comprising the mixture of R32, R134a, R125, etc., and a synthetic oil, capable of being used as a substitute for CHClF2, and excellent in environmental pollution resistance. CONSTITUTION:This cooling medium comprises (A) a mixture comprising at least R32 (CH2F2), R134a (C2H2F4) and R125 (C2HF5) and (B) a synthetic oil. |
