... titanium or double material mixed A) Our finned tube included bellowing materials:1) Aluminum extruded fin tube, base material is carbon steel SA179 ... + H finB) Our Clients include EPC companies, manufacturers of air cooler, fired heater, heat exchanger, marine boiler, economizer, power plant ... = new AE.run.minisite.productShow(); oProductShow.init( { 'aImgSrc': aBigImageSrc } ); } )(); finned tube