• Insert line into the tandem pump and screw in union nut but do not tighten it.

    管路插入,然后管螺母不要拧紧

    www.websaru.net

  • Insert line into the tandem pump and screw in union nut but do not tighten it.

    管路插入,然后管螺母不要拧紧

    www.websaru.net

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