| 摘要 |
<p>A valve core (20) includes a cylindrical core base (21) fixed in a core mounting hole (11) having an inner circumferential surface, a movable shaft (30) extending through the core base (21) so as to be movable, the movable shaft (30) having a distal end, a first sealing member (31) made of rubber and located on the distal end of the movable shaft (30) so as to adhere closely to a distal end of the core base (21) or the inner circumferential surface of the core mounting hole (11), thereby closing the core mounting hole (11), and a second sealing member (32 to 36) made of a metal glass and located on the distal end of either one of the movable shaft (30) and the core base (21) so as to adhere closely to the distal end of the other, thereby closing the core mounting hole (11).</p> |
