Kọlụm ụgbọ oloko nche
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Kọlụm nche ụgbọ okporo ígwè na ogidi osisi ngere awara awara
Kọlụm efere Guardrail bụ ụdị kọlụm nwere ike dị elu, igwe dị mma, ọdịdị mara mma, ọhụụ sara mbara, ntinye dị mfe na nguzogide corrosion, oke anwụ anwụ na-eguzogide, agba na-egbuke egbuke na oge iji na-egbuke egbuke maka ogologo oge, a ga-eji maka okporo ụzọ, okporo ụzọ ụgbọ oloko. , akwa n'akụkụ abụọ nke nchebe