The flared end is then drawn up by the tube nut so the inside surface is tightly secured against the ball seat of the fitting.
接着通过管道螺母将扩口端拔出使其内部表面与管件球座紧密结合。
The flared end is then drawn up by the tube nut so the inside surface is tightly secured against the ball seat of the fitting.
接着通过管道螺母将扩口端拔出使其内部表面与管件球座紧密结合。
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