Introducing the properties of goggle type board Plug valve, analyzing the characteristics of the valve, proposing the methods of improving sealing structure.
介绍了眼镜式插板阀的性能，分析了该阀门的密封特点，提出了改进密封结构的方法。
Introducing the properties of goggle type board Plug valve, analyzing the characteristics of the valve, proposing the methods of improving sealing structure.
介绍了眼镜式插板阀的性能，分析了该阀门的密封特点，提出了改进密封结构的方法。
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