| 摘要 |
<p>The tile has two plane and rectangular parts (1, 2), where each part has upper faces and lower faces. The two parts are joined along a junction plane (J), and the lower faces are placed opposite to a frame of a fascia-board. The two parts are extended along planes (A, B), which encloses an angle (C) between the parts. The angle opens from the side of the lower faces. An elevated rib (3) is provided at the side of the lower faces, where the length of the rib is lower than the length of the tile.</p> |
