| 摘要 |
<p>The blind for windows or doors comprises a strip of flexible material which can be withdrawn from a roller. The roller is spring-biassed, allowing only the required length of the strip to be withdrawn. The strip is made of natural or synthetic material and may be translucent, coloured or reflective. The blind can be adapted to all sizes of windows by using a suitable number of rollers, to cover the required area.</p> |
