... 1. Aluminium rolled fin 2.Heat exchanger tube: Carbon steel, copper, titanium, stainless steel etc. 3. Good heat conduction. Basis tube material: Carbon ... 2.0MPa.Advantage: Good and stable heat conduction performance, corrosion resistance, small heat resistance, high indesity, small resistance, dustproofing, durable service and nice ... .923 rows or rolled finsquare meterfurcal row air heat exchanger SZL