| 摘要 |
<p>The head (1) has a set of extrusion heads (2) is arranged side by side in a row to form a plane. A distributing devices (6, 15) includes a distributing channels (7) in which the distributing channels are arranged in a plane (16) extending at a right angle relative to the two planes, two set of distributing channels start from a mass entrance, one set of distributing channels is connected to another mass entrance and another set of distributing channels is connected to the other mass entrance, and the distributing device is separated in the former plane.</p> |
