rubber faced flat valve

阀门英语大全 ... rubber sealed valve 橡胶密封阀 rubber-faced flat valve 胶面板阀 safety valve 安全阀; 保险阀 ...

单面... ... ) single-sided plate valve 单面板阀液> ) rubber-faced flat valve 胶面板阀液> ) sliding plate valve 滑板阀液> ...