... fluid media:all type of refrigerants(R410a,R407c,R404,R134a,R22,R23,etc),oil,water,water and glycol mixtures. ... machines,compressors(circulation oil),air conditioners,refrigerators,air dryer,water cooler,drinking thoughts,constant temperture refrigerator,heat recollection and circulation, ... .5. Corrosion-resistant: good corrosion resistance.6. To facilitate the installation of: fixed a variety of ways ...