Ihe a gwara ya maka tumpes fumace, mgbanwe ọkụ na pipelines na mmanụ na-akụzi
Ejiri ya na imepụta mgbidi-mmiri na-ajụ oyi, mmiri ọkpọkọ mmiri, summehed pipers, buru ibu na obere ọkpọkọ anwụrụ, nnukwu brick pipes, wdg.
Ígwè carbon dị elu; Nchara nchara; Okpomoku dị ọcha na-eguzogide
