• 球形磨损,可用钢球放到座上,金属棒轻轻敲击钢球数次直到球阀密合为止。

    After the ball valve seat wear and tear, can be a ball into the seat, and with the rod lightly tapping ball several times, until the valve with the valve seat up close together.

    youdao

  • 球形磨损,可用钢球放到座上,金属棒轻轻敲击钢球数次直到球阀密合为止。

    After the ball valve seat wear and tear, can be a ball into the seat, and with the rod lightly tapping ball several times, until the valve with the valve seat up close together.

    youdao

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