A na-eji ígwè a234 carbon steel frish dị mma, a na-eji chroy nchara, melybdenum, nickel, na-egbochi ya, ike nrụgide dị elu, ike na-eguzogide nguzogide na ogologo oge. A na-ejikarị ya na pipeline na ọkpọkọ mmanụ, ụlọ ọrụ kemịkalụ, osisi na-akụ, osisi nuklia na mpaghara ndị ọzọ.