4000 mndandanda nthawi zambiri zimakhala ndi zida pakati pa 4.5% ndi 6%, ndi zida zapamwamba, mphamvu zazikulu. Malo ake osungunuka ali otsika, ndipo amakhala ndi kutentha kwabwino komanso kuvala kukana. Amagwiritsidwa ntchito makamaka pomanga zida, makina, etc.

7000 mndandanda, wokhala ndi magnesium monga chinthu chachikulu, amathanso kutchulidwanso ngati magnesium alminium. Nthawi zambiri zimawonedwa m'makampani, zimakhala ndi kachulukidwe kochepa, mphamvu zapamwamba kwambiri, komanso zabwino.

6000 mndandanda, wokhala ndi magnesium ndi silicon monga zinthu zazikulu, gwiritsani ntchito mawonekedwe a mndandanda zinayi ndi mndandanda zisanu, zoyenera zokhala ndi zokongoletsera kwambiri komanso zokongoletsera kwambiri ndi oxidation.

7000 mndandanda, makamaka wokhala ndi zinthu za aluminium, komanso a ndege ya aluminium, imatha kuthandizidwa kutentha, amakhala a Superhurd aluminium aloy, ndipo amavala bwino kukana.

8000 mndandanda, womwe ndi kachitidwe ka Alloy wina kuposa momwe zili pamwambapa, ali ndi mndandanda wina ndipo amagwiritsidwa ntchito makamaka chifukwa cha zojambulazo za aluminiyamu.