Ngwa: 1. Steel Foundry: carburent/graphite electrode/refractory ihe 2. Ubi ụlọ ọrụ: pad brek/mgbanaka akara/efere esemokwu/ihe mgbanwe okpomọkụ/mmanụ 3. Mmepụta Batrị: katode batrị alkaline/lithium ion katode batrị 4. Metallurgy: ihe eji eme ihe maka imepụta iko/graphite crucible/ anode maka ụlọ ọrụ na-agbaze aluminom 5. Ndị ọzọ: mpempe akwụkwọ iko/pensụl ndu/brik ụrọ/mkpuchi na-eduzi ihe
