| 摘要 |
<p>Roof ridge piece permits roof crests and ridge tiles to be covered rapidly. It is a single light moulding of laminated polyester resin and glass fibre which is mass-coloured and forms the ridge and ridge end in a single element. Its outer surface is covered by a coloured polyester gel-coat. The pieces are joined by gluing with glass fibre and polyester resin, and are nailed to the woodwork.</p> |
