| 摘要 |
A screw cap with applied bung, comprising a cylindrical cup (2) which is provided with an internal thread and with an annular lip (8) which protrudes inward from a wall (3) of the cup, proximate to a bottom (4) of the cup, and forms, together with said bottom, an annular slot (9), further comprising a circular bung (11) having a peripheral edge engaged in said slot (9) and provided with at least one annular ridge (14) which protrudes axially and is centered in said annular lip (8), said bung (11) being significantly thinner than the height of the annular slot (9). |
