Babban mitar welded karkace finned tubes ana amfani da su gabaɗaya don masana'antar petrochemical kuma galibi ana shigar da su akan sassan ɓangarorin na'urorin dumama wuta, ɓangarorin zafi mai zafi, masana'antar tattalin arziki, preheaters na iska, da masu musayar zafi waɗanda suka haɗa da canja wurin zafi daga ruwa mai zafi zuwa ruwa mai sanyi ta hanyar tube bango.