| 摘要 |
<p>Hollow section alphabetic characters used for advertising display purposes includes a stiffened sidewall. The side walls (1) are curved to suit certain letters and are produced in a material with triangular section ribs for stiffening purposes. The front plate (2) is manufactured in a suitably coloured acrylic plastic. A fluorescent light tube is built into the unit. The support members may be made of metal plates.</p> |
