The elastic sealing element can seal the valve rod and the valve seat when pressure in the cooker is started to be increased.
由于阀座下部设有弹性密封件，在压力锅上气后，弹性密封件密封阀杆和阀座。
The introduction of the super elastic alloy material to the packers is a new way to solve the problems of rubber sealing element.
将超弹性合金材料引入封隔器领域，是解决橡胶材料密封件所存在问题的新途径。
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