stem seal
短语词组
- Stem -Seal-Ring 閥杆密封圈
- valve stem seal 氣門油封;密封活塞杆
- STEM SEAL VALVE 氣門油封
- lower stem seal 下閥杆密封
- stomvery single stem seal 本躰閥杆密封
- STEM PACKING or SEAL 填料或密封
- Stem Seal & Type 杆密封材質及類型
- body stem seal 本躰閥杆密封;本躰閥杆彌縫;閥杆密封
- guide vane stem seal 導葉軸密封 返回 stem seal