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  • The technological requirement and bonding process for SC and SD type of cylindrical sleeves were introduced.

    介绍了SC型和SD型筒形砂套技术要求及制作工艺。

    youdao

  • The technological requirement and bonding process for SC and SD type of cylindrical sleeves were introduced.

    介绍了SC型和SD型筒形砂套技术要求及制作工艺。

    youdao

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