Poyerekeza ndi wamba bala chilonda finned chubu, kukhudzana matenthedwe kukana amakhalabe khola mu osiyanasiyana lalikulu ndi kusintha kutentha, kotero kutentha kutengerapo ntchito ya bimetallic zotayidwa extruded finned chubu ndi bwino kuposa ozungulira zipsepse chubu mu malire chubu khoma kutentha osiyanasiyana.
Kuonjezera apo, poyerekeza ndi chubu chopiringidwa, bimetallic aluminium extruded fin chubu ili ndi kukana kwa dzimbiri komanso mphamvu zambiri, imatha kupirira 4.0MPa madzi kuthamanga kuyeretsa, zipsepsezo sizimagwera pansi, m'munsi mwa chubu cha bimetallic aluminium extruded chubu.chubu akhoza kusankhidwa malinga ndi dzimbiri madzimadzi mu chubu ndi processing luso.The m'munsi chubu akhoza kukhala carbon zitsulo, mkuwa, zitsulo zosapanga dzimbiri, etc.