... double screen printing machine 双面绢网印花机 double seal valve 双密封阀 double seam welder 双层缝焊机 ...
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double-seal valve 双密封阀
double -seal valve 双密封阀
double e seal valve 双密封阀
double-seal rail valve 双密封导轨阀
double seal dust valve 双层密封放灰阀
When disconnecting cylinders with diaphragm valves, it is most important to double close the valve and to properly install the outlet seal.
当切断钢瓶和隔膜阀的连接时，两次关闭阀门和正确安装排气口密封是最重要的。
One valve includes a cap (56) that provides a double seal (58, 60) .
一个阀门包括提供了双重密 封件（58、60）的盖子（56）。
Fully sealed: with cover and pole double seal design to prevent leakage of electrolysis. and the reliability of safe-valve prevent oxygen and dust from outside enter into the battery.
采用电池槽盖、极柱双重密封设计，防止漏液，可靠的安全阀可防止外部空气和尘埃进入电池内部。
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