... ,high quality copper tube 3. copper and aluminium evaporator coilsEvaporator 1.material:copper,aluminium,galvanized plate,stainless steel ... or smooth tube3.Aluminium foil:hydrophilic or bare4.Fin type:louver fin,flatfin,corrugated fin5.Pintch of fins can ... equilateral triangle arrangement7.Suitable for R134A,R22,R404A,R407C refrigerator and so on8.Different alternative fan available:micro fan ...