One end of a bottle opener (7) is matched with the wedgegroove opening (5).
启瓶器(7)的一端与楔形槽口(5)相配合。
2
In addition, the blade assembly and the wedge can be accommodated in the groove such that a cutting portion of the blade projects towards the opening.
其中，所述刀片组件和所述楔可以被收容在对应的槽中，使得所述板状刀片的切削部分从所述开口突出；
3
And because the wedge block and the role of the dovetail groove of the stem, the valve increases the forced sealing force, increases the sealing pressure ratio, the two-way sealing.