Lokacin da simintin gyare-gyare na buƙatar gyara, haɗawa, ko jiyya na ƙasa, ƙayyadaddun buƙatun tsari dole ne a bi.
Yin amfani da abubuwa masu nauyi irin su aluminium alloys don maye gurbin simintin ƙarfe na gargajiya ko ƙarfe yana rage nauyin abubuwan haɗin gwiwa kamar injin, watsawa.
Complexity of Structure: Zai iya kera sassa tare da kogo na ciki da hadaddun sifofi, kamar tubalan injuna, nau'ikan kayan abinci, da gidajen axle.
Kimanin kashi 85% na simintin gyare-gyaren mota suna amfani da allunan aluminum.
Halayen tsarin simintin gyaran injinan gini ana nunawa musamman ta fuskoki kamar rikitarwa, nauyi{0}}ƙarar ɗaukar nauyi, daidaitawar tsari, da buƙatun sarrafa lahani.
Amfani da manyan kayan aiki irin su babban simintin simintin simintin gyare-gyare na carbon (ADI) yana ƙaruwa.
Simintin injinan gini sune mahimman abubuwan tushe waɗanda ke haɗa kayan aiki masu nauyi kamar su tona, lodi, bulldozers, rollers, da kankare mahaɗa.
Simintin gyare-gyaren injuna sune ainihin abubuwan da suka ƙunshi kayan aikin gini daban-daban, kuma ana amfani da su sosai a cikin mahimman tsari da sassan aikin gabaɗayan injin.