| 摘要 |
<p>The panels, which have a layer of lead to act as a shielding, are fitted to the required surface by a U-shaped section fitting between adjacent panels. The flanges at the edges of this section hold the panels down, and a layer of lead shielding is attached to the wall behind the joint. A lead strip fits into the channel, and this is then covered by a decorative strip as required.</p> |
