Kuderedza kupisa conduction: kupisa-inodzivirira bhiriji aruminiyamu alloy profiles 'coefficient i1.8-3.5W/m2-k, iyo yakadzikira pane yakajairwa aruminiyamu alloy profiles 140-170W/m2k; kupisa kwayo kunoenderana ne3.17-3.59W/m2- k mune hollow girazi chimiro, yakaderera zvakanyanya pane yakajairwa aruminiyamu alloy profiles ye6.69-6.84W/m2-k, iyo inonyatso kudzikisa kupisa kunoitwa nemagonhi uye kupisa kunoitwa nemumikova nemahwindo.