Akụkọ ụlọ ọrụ
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Anyị ga-aga WEFTEC2016 na New Orieans USA
WEFTEC, Water Environment Federation's Annual Technical Exhibition and Conference, bụ nnukwu nzukọ ụdị ya na North America ma na-enye ọtụtụ puku ndị ọkachamara n'ịdị mma mmiri si gburugburu ụwa mmụta na ọzụzụ kacha mma nke mmiri dị taa. Achọpụtakwara...GỤKWUO
