| 摘要 |
An opening device comprising a removable membrane ( 11 ) connected to a pulling device ( 12 ). The pulling device ( 12 ) is connected to the membrane ( 11 ) at its opposed ends ( 13, 14 ) so as to define a pull ring. Weakening arrangements ( 15, 16 ) are provided at said opposed ends to initiate the tearing off of the membrane. |
