fin evaporator coil copper tube: 7mm,7.94mm,9mm, ... test fin evaporator coil Suitable for R134A, R22, R404A, R407C refrigerant and so on 1.material :copper , aluminum ,2.aluminum foil: ... grooved or smooth tube5.side plate: galvanized plate or aluminum plate6.size: from1/6HP to 20HP8.prodcut length: ... used in refrigeration industry, cold room and other system.12.we can supply products as per customized ...