Gari masana'antu da ma'adinai ruwa samar da magudanun ruwa, gundumomi injiniya, najasa magani.
Zazzagewa da haɓaka ruwa a cikin ƙarfe, ƙarfe, masana'antar wutar lantarki, ginin jirgi, tsire-tsire na ruwa, da sauransu.
Ayyukan kiyaye ruwa da gudanar da kogi.
Ban ruwa na gonaki, kiwo, gonakin gishiri, da sauransu.