Ngwaahịa
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Bailey Bridge nkume
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Bailey Bridge Curb
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Bailey Bridge Yin na yang isi
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Njikọ eriri ala
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Mpempe akwụkwọ nke Bailey Bridge
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Arụmọrụ kacha mma nke nrụgharị akpa
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Ntugharị akpa akpa R&D
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Ụgbọ njem dị mfe na akwa okporo ụzọ ụgbọ oloko dị mma
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Highway Truss akwa
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Akwa mmiri okporo ụzọ
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Multiple Box Girder Bridge nwere àgwà na oke
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Double Box Girder Bridge nwere ịdịmma na ọnụọgụ