1. Man Fetur: Gudanar da bututun mai don jigilar gurbatattun kafofin watsa labarai a cikin bututun jigilar man fetur, magungunan sinadarai, masana'antar bugu da rini;

2. Yin kashe gobara: Yana da dacewa ga bututun samar da ruwa na tsarin sprinkler-proof da sprinkler;

3. Hanyar gaggawa: Hannun kariya na kebul don wutar lantarki, sadarwa, da hanyoyin gaggawa;

4. Coal mine: dace da hanyoyin sadarwa na bututu irin su samar da ruwa na karkashin kasa da magudanar ruwa, fesa karkashin kasa, tabbataccen iska mai kyau da mara kyau, magudanar gas, yayyafa wuta, da dai sauransu;

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6. Tashar wutar lantarki: sarrafa sharar ruwa da kuma mayar da bututun ruwa na tashar wutar lantarki ta thermal;

7. Noma: hanyoyin sadarwa don bututun ban ruwa na noma, bututu mai zurfi, bututun magudanar ruwa, da sauransu;

8. Municipal injiniya: m ga high-hawan ginin ruwa samar, dumama cibiyar sadarwa dumama, Gudun ruwa injiniya, gas watsa, binne ruwa watsa da sauran bututu.