flapper valve
短语词组
- flapper -valve 板阀
- flapper seal valve 密封瓣阀
- flapper actuator valve 瓣阀
- Nozzle Flapper Servo Valve 喷嘴挡板伺服阀
- Nozzle flapper valve 喷嘴儿挡板阀
- bulkhead flapper valve 舱壁瓣阀
- flapper type exhaust valve 舌门型排气阀
- jet flapper valve 单喷嘴挡板阀 返回 flapper valve