● Ọrụ nchebe ọkụ dị ịrịba ama, siri ike ọkụ. Mgbochi corossion, Acidproof, alkali, na-enwu ngwa ngwa, ọkụ dị elu, ogologo ndụ logn. ● Nabata teknụzụ pụrụ iche, na-ebu mkpuchi ikuku n'èzí, arụmọrụ mkpuchi okpomọkụ dị mma, n'oge okpomọkụ na-ekpo ọkụ nwere ike inye ihe atụnyere ígwè iji jiri tile dị mma na gburugburu ebe obibi.