Ana amfani da simintin gyare-gyaren injuna musamman a cikin nau'ikan injinan gini masu zuwa

Injin motsin ƙasa: masu tonawa, buldoza, loda, da dai sauransu;

Na'urorin haɗi: rollers, tampers, da dai sauransu;

Injin kankara: manyan motocin mahaɗa, manyan motocin famfo, pavers, da sauransu;

Injin ɗagawa: cranes, cranes hasumiya, da dai sauransu;

Injin shimfida: injunan niƙa, pavers, da sauransu.