• The good connection between the steel sleeve and the anchor ring is ensured by the fastening of the high strength screw nut.

    通过高强螺母紧固保证套管之间良好连接

    youdao

  • The good connection between the steel sleeve and the anchor ring is ensured by the fastening of the high strength screw nut.

    通过高强螺母紧固保证套管之间良好连接

    youdao

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