● Ọtụtụ usoro, voltaji, ikike na akụkụ wdg nwere ike ahaziri.
● Nguzogide batrị dị ala, ọnụego mwepu dị elu, ikpo okwu nkwụsị kwụsiri ike.
● Enwere ọtụtụ ọdụ plọg ị ga-ahọrọ na ha.
● A na-eji ya eme ihe, dozie nsogbu ike nke ọma.
● Ngwa: Ngwa ụlọ, ụlọ moto, ọkụ eletrik, ọdụ ụgbọ mmiri, ngwa n'èzí, AGV ect.