Dace da mahalli kamartabbacin ruwa, juriyar mai,UV juriya, juriya yanayi, juriya sanyi, juriya juriya, juriyaingwani ƙarfin injiniya na waje mai kyau halaye na lantarki (tsangwama na tono,kumashigarwa karkashin reciprocating motsi, musamman a cikin masana'antu yanayi na akai-akai lankwasawa lokatai, kamar zamani inji misali sassa a cikin sarkar da dabaru tsarin, kula da tsarin, inji aiki da kai tsarin.