Concrete bụ ihe eji arụ ọrụ na-ebukarị ibu nke a na-ejikarị eme ihe taa nke mejupụtara ciment, mmiri, nchịkọta, ihe mgbakwunye kemịkalụ, na ihe mgbakwunye mineral n'ihi njirimara ya dị ka ọnụ ala, nkwụsi ike dị elu, iji ogologo oge na-adị mfe ịkpụzi. . Ogo nke ihe a, w...
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