| 摘要 |
<p>Rolls having an elasticity on their outer periphery are proposed for use in corrugated fibreboard producing and processing machines. Tubes or tubular sheet adapted to be inflated with gas, elastic cords or strings, elastic tubular sheet, or tubular sheet with air bubbles thereon or therein are used to at least partially cover the outer surface Or the rolls, thus giving the rolls an elasticity.</p> |
