| 摘要 |
<p>The jet beam assembly, for matting the fibres of a fibre web through fluid jet streams, has an O-rig as a fluid seal for the mounting of the jet plate at the lower section. The facing upper section (1) has a repair groove (26) along the whole length and width of the O-groove (12') of the O-ring (12), with a height which is slightly greater than the O-ring (12) thickness.</p> |
