Inzuzo enkulu ye-carbon fiber kukuba inobunzima obungaphantsi kwekota yentsimbi kwaye ilula kune-aluminium, iyenza ibe yinto efanelekileyo yokufezekisa "ubunzima". Ama-30 ekhulwini alula kune-aluminiyam kunye nama-50 ekhulwini alula kunentsimbi. Ukuba zonke iindawo zentsimbi zemoto zatshintshwa nge-carbon fiber composite materials, ubunzima bemoto bunokuncitshiswa ngamakhilogremu angama-300. Ifayibha yeCarbon yomelele ngokuphindwe kayi-20 kune-iron, kwaye kuphela kwento engaphelelwa ngamandla kumaqondo obushushu aphezulu angama-2000℃. Umthamo ogqwesileyo wokufunxa impembelelo ngama-4-5 amaxesha ezinto eziqhelekileyo zetsimbi