| 摘要 |
<p>A slitter for web material comprises at least one pair of rotatable circular knives each comprising a lower cup knife and an upper disc knife which plunges into the web material during use. The upper disc knife is disposed with its axis perpendicular to the line of movement of the web of goods and the lower cup knife is disposed with its axis at a selected angle to the line of movement of the web of goods.</p> |
