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Carbon da carbon-manganese karfe bututun ƙarfe maras sumul da bututu don jirgi
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Bututun ƙarfe mara ƙarfi don manufar tsari
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Sanyi-ja ko sanyi-birgima madaidaicin bututun ƙarfe maras sumul
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Bututun ƙarfe mara ƙarfi don matsa lamba don kayan aikin taki
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Bututun ƙarfe mara ƙarfi da bututu don tukunyar jirgi mai ƙarfi
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Bututun ƙarfe mara ƙarfi don tukunyar jirgi mara ƙarfi da matsakaici
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Bututun ƙarfe mara nauyi don sabis na ruwa
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Bututun ƙarfe mara sumul don fashewar mai