... widely used in refrigeration industry High quality,Reasonable price. copper coil heat exchangerSuitable for R134A, R22, R404A, R407C refrigerant and so ... on Air cooled evaporator 1.material :copper , aluminum ,galvanized plate2.aluminum foil: hydrophilic or bare3.fin ... type: louver or flat fin and corrugated fin.4.copper pipe: diameter 7mm or 8mm or 9.52mm,etc ,inner ...