Ana amfani da samfuran sosai a cikin injiniyoyin injiniya, injin gini, injin ƙarfe da injin ma'adinai, injinan jigilar kayayyaki, injin kare muhalli, injin masana'antar haske, injin sinadarai na mai, injin injiniya, kayan masana'antar yaƙi da sauransu.