Igwe ọkụ na-emikpu flange na-ewere mkpuchi tube igwe anaghị agba nchara, ntụ ntụ magnesium oxide gbanwetụrụ, waya nickel-chromium electrothermal alloy na-arụ ọrụ dị elu na ihe ndị ọzọ. Nke a usoro nke tubular okpomọkụ okpomọkụ nwere ike n'ọtụtụ ebe na kpo oku mmiri, mmanụ, ikuku, nitrate ngwọta, acid ngwọta, alkali ngwọta na ala-agbaze ebe ọla (aluminom, zinc, tin, Babbitt alloy). Ọ nwere ezigbo ọkụ ọkụ ọkụ, otu okpomọkụ, elu okpomọkụ na-eguzogide, corrosion eguzogide na ezi nchekwa arụmọrụ.