| 摘要 |
<p>Shelf suitable for use successively in the rising chamber, the drier and the oven consists of a screen carried by a stiffened frame, as in FR.152328, the screen being silicon glass cloth as in FR.6902893. The shelf stiffened by fixed cross bars, and the screen has permanent transverse folds outlining moulds, the folds lying along the cross bars. Specif. the folds may be formed by any suitable thermal or mechanical process and pref. stiffened and reinforced by a coating of plastic.</p> |
