| 摘要 |
<p>An adjustable reaction tub (10) for making tubular cellulosic casings from viscose, the tub (10) having upper rollers (55) mounted to a frame (25) and lower rollers on a roll support (50) mounted to the same frame (25) for adjustable positioning of the lower rollers at any of a range of depths within the tub (10).</p> |
