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Oke nchekwa maka ụgbọ ala 4D
The ụzọ anọ kpụ ọkụ n'ọnụ ụlọ nkwakọba shelf bụ tumadi esịnede ogbe iberibe, Sub-channel crossbeams, Sub-channel tracks, kehoraizin tie mkpanaka ngwaọrụ, Main ọwa crossbeams, Main channel tracks, Njikọ nke racks na ala, kemeghi ụkwụ, azụ adọka, nchebe ụgbụ, mmezi ladders, Isi ihe nke shelf bụ Q235/Q355 nke shelf kpụrụ na ígwè na ígwè bụ isi ihe nke shelf bụ Q235. site na ịtụgharị oyi.