Kaya
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Astm A335 P91 Nau'in 2 Tubes / p5 / P9 / P9 / P11 / P12 / P22
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A213 T22 Babu Alamu Boyoy Karfe Shakuna / bututun
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Bututun ƙarfe, oxygen-free jajista-free-free tube (nacc), C10100 (na ofhc) Taya na kwance kyauta
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Yana jefa ƙarfe da kuma ƙirƙira kayan ƙarfe
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Asme B16.9 A234 WPB Carbon Karfe Copbon
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Asme B16.9 A234 WPB Butt Welon Karfe Tee
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Bakin karfe bututun subnes asme b16.5 SS304
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S22053 Babu Alama Bakin Karfe
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DUMLEX Bakin bakin ciki mara nauyi mara nauyi ASM A815 S31803