Amacandelo aphambili omnyango womlilo aqulunqwe ngamagqabi omnyango, ifreyimu yomnyango, isitshixo somlilo, isibambo somlilo, iglasi yomlilo, umnyango womlilo osondeleyo, i-hinge yomlilo kunye nezinye izinto. Izinto eziphathekayo ezinomnyango wesakhelo somnyango kwiingcango zomlilo zeKlasi A, kuba iinkcukacha zesakhelo socango ziyakwazi ukulungiswa ngokuguquguqukayo ngokweemfuno zabathengi, kulungeleka ngakumbi, ukonga umsebenzi kunye nokugcina ixesha ukuyila ubungakanani bokuvula umnyango. .