The utility model relates to a bottle stopper for secondary sealing, which comprises a stopper body.
本实用新型是一种二次密封用瓶塞。
For example, in order to prevent secondary pollution, even the use of sewage is not Valve asbestos packing and gasket sealing.
例如为了防止二次污染，即使是排污阀也不采用含石棉的密封填料和垫片。
It was believed that the improvement of battery case material and the sealing technology would improve obviously the performance of AgO-Zn secondary battery.
指出壳体材料和工艺的改进将显著提高锌银二次电池的性能水平。
The utility model discloses a sealing and unsealing device for a bottle mouth, comprising an opener with eccentric feet, primary and secondary rotors, a spring, etc.
本实用新型是一种瓶口启封装置，它由带偏心脚的启子，主、副转子，弹簧等组成。
The utility model discloses a sealing and unsealing device for a bottle mouth, comprising an opener with eccentric feet, primary and secondary rotors, a spring, etc.
本实用新型是一种瓶口启封装置，它由带偏心脚的启子，主、副转子，弹簧等组成。
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