| 摘要 |
The cover (1) has a filling/ pouring opening closed by a closing unit. The opening has an intermediate ring (6) which has fixation zone for a closing element for tight closing of the opening. The cover and the ring are in connection zones and are independent of one another in propylene (PP) and polyethylene (PE). The cover and the ring are connected by soldering. The cover and the ring have plane juxtaposition zones for other respective components through which the ring is fixed on the cover in a durable manner using a connection by reticulation. An independent claim is also included for an intermediate ring for cover of a barrel. |
