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    Ju Ximin, Fang Wei. DISSECTIONAL INVESTIGATION OF NDD-DETECTED DEFECTS OF ARGENTINA-MADE Φ139.7mm OIL CASING[J]. STEEL PIPE, 1997, 26(2): 9-11.
    Citation: Ju Ximin, Fang Wei. DISSECTIONAL INVESTIGATION OF NDD-DETECTED DEFECTS OF ARGENTINA-MADE Φ139.7mm OIL CASING[J]. STEEL PIPE, 1997, 26(2): 9-11.
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    DISSECTIONAL INVESTIGATION OF NDD-DETECTED DEFECTS OF ARGENTINA-MADE Φ139.7mm OIL CASING

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      • Abstract
    • Most of the Argentina-made oil castings used in the Zhongyuan Oil Field were unqualified. After NDD inspection and dissectional investigation of the pipes,the main defects were found to be folds and large non-metallic inclusions.
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