parallel single disk gate valve的意思|示意

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并联单盘闸阀

单阀碟双面平行密封闸阀 ... 带辅助装置的安全阀 Assisted safety valve 单阀碟双面平行密封闸阀 parallel single disk gate valve 单口排气阀 Single Opening Exhaust Valves ...

单阀碟双面平行密封 ... single poly gate 单晶 parallel single disk gate valve 单阀碟双面平行密封闸阀 ; 单阀碟双面平行密封 ; 单阀碟双面平行弥缝闸阀 parallel single disk gate ale 单阀碟双面平行密封闸阀 ...

船用闸阀 ... 带辅助装置的船用安全阀阀 Assisted safety valve 单阀碟双面平行密封船用闸阀 parallel single disk gate valve 单口排气阀 Single Opening Exhaust Valves ...