| 摘要 |
<p>The capping system for bottles containing still water comprises a bottle neck (5) on which an internally-threaded cap (2) is inserted, which neck develops truncoconically and in which a minimum angle alpha between a tangent of an upper surface (1a) of the thread (1) and a line perpendicular to a bottle axis, measured in an anticlockwise direction, is greater than an angle beta between a tangent of a lower surface (1b) of the thread (1) and a line perpendicular to the bottle axis, measured in a clockwise direction. <IMAGE></p> |
