1.Refrigerant R22: R22 yog ib yam kub, nws tus qauv boiling point ntawm 40.8 ° C, dej solubility nyob rau hauv lub R22 yog heev me me, thiab ntxhia roj yaj ib leeg, R22 tsis hlawv, tsis yog tawg, toxicity yog me me, R22 kev tshawb nrhiav muaj peev xwm muaj zog heev, thiab cov xau tsis yooj yim nrhiav.R...
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