... , so that it has best heat exchanger effection. It's a best choice for air heat equipment with thermal medium of high ... working temperature is under 300.The materials of SZL compound fins can be carbon steel,copper,titanium,stainless steel. With ... dusted, imputrescibility durable, handsome in appearance and long life service.Heat exchanger, fin tube, aluminium fin tube, thermal oil radiator, dryer, ...