| 摘要 |
<p>The moulding has a back part (1), one straight arm (2) at right angle relative to the back part, and a second arm (3) which is slant, situated at acute angle relative to the back part (1) . The slant arm (3) has notches (4) in its longitudinal edge, situated locally at certain intervals each from the other, along its lenght.</p> |
