Tụnyere na nkịtị ọnya finned tube, kọntaktị thermal iguzogide na-anọgide na-eguzosi ike na a nnukwu nso na okpomọkụ mgbanwe, otú okpomọkụ nyefe arụmọrụ nke bimetallic aluminum extruded finned tube dị mma karịa spiral fin tube na ịgba tube mgbidi okpomọkụ nso.
Tụkwasị na nke ahụ, e jiri ya tụnyere tube nke a na-ejikọta ya, bimetallic aluminum extruded fin tube nwere nguzogide corrosion pụtara ìhè na ike dị elu, ọ nwere ike iguzogide 4.0MPa nrụgide mmiri, ntù ahụ ka na-adaghị ala, isi nke bimetallic aluminum extruded tube.Enwere ike ịhọrọ tube dị ka corrosion nke mmiri dị na tube na nkà na ụzụ nhazi.Isi tube nwere ike ịbụ carbon ígwè, ọla kọpa, igwe anaghị agba nchara, wdg.