... air blower, which saves electricity.There are standard pitches of fins is 8, 10 and 12mm . Area and st ructural size ... air blowerNumber of evaporators through air (6,8pieces)Pitch of fins: 8, 10, 12mmDefrosting way: H: hot-ammonia defrosting A: auto ... galvanized pipes to be choosed2.Aluminum,s.s with galvanized fins to be choosed3:Fin space:8MM,12MM,16MM to be ...