| 摘要 |
<p>A container (B) has a plastic cap closure (1) incorporating a lower bung (2) and a cylindrical spout. The spout has a female thread with a cylindrical cutter (3) open on both sides, and also has a male thread retained by a screw fit. the lower part (2) has a screw cap (4) closure with a central bush having key ways (44) which engage with matching fittings (34) on the cylindrical cutter.</p> |
