| 摘要 |
<p>An injector of the co-injection of two or more plastic materials comprising an injection nozzle (2), a shutting rod (5), two or more feeding channels (3, 4) for feeding two or more plastic materials, and a hollow tubular element (7) extending to the exit (12) of the injection nozzle and provided with at least one through hole (9); the tubular element (7) is rotatable between a first position in which the hole (9) connects a first feeding channel (3) with the hollow (8) of the tubular element and at least one second position.</p> |
