Pambuyo pa chithandizo: Malingana ndi zofunikira za kuponyera, ntchito zochizira pambuyo pa chithandizo monga chithandizo cha kutentha, chithandizo chapamwamba, makina opangira makina kapena kusonkhanitsa akhoza kuchitidwa kuti apititse patsogolo ntchito kapena ntchito ya kuponyera. Aluminium alloy casting imapereka maubwino angapo, kuphatikiza kusinthasintha kwa mapangidwe, kutsika mtengo, komanso kuthekera kopanga mawonekedwe ovuta ndi kulolerana kolimba.