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  • The reason of defect generation is local spot corrosion due to contact with the corrosive medium in the transportation and storage.

    产生缺陷的原因是运输、储存过程中与腐蚀性介质接触造成钢管局部点腐蚀。

    youdao

  • The reason of defect generation is local spot corrosion due to contact with the corrosive medium in the transportation and storage.

    产生缺陷的原因是运输、储存过程中与腐蚀性介质接触造成钢管局部点腐蚀。

    youdao

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