Nozzle flapper valve 喷嘴儿挡板阀
flapper-valve controller 挡板阀控制器 ; 挡板阀节制器
insert flapper valve 嵌入式舌形阀
packer flapper valve 封隔器活瓣阀
single-jet flapper valve [机] 单喷嘴挡板阀
single-flapper valve 单喷嘴挡板阀
two-jet flapper valve 双喷嘴挡板阀
A flapper valve (22) may be used as another seal.
挡板阀门(22)可以用作另一密封件。
GD high vacuum flapper valve is used to put through cut off the airflow in vacuum pipeline.
GD型高真空挡板阀用于接通或切断真空管路中的气流。
GD high vacuum flapper valve is used to put through or cut off the airflow in vacuum pipeline.
GD型高真空挡板阀用于接通或切断真空管路中的气流。
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