stem seal
短语词组
- Stem -Seal-Ring 阀杆密封圈
- valve stem seal 气门油封;密封活塞杆
- STEM SEAL VALVE 气门油封
- lower stem seal 下阀杆密封
- stomvery single stem seal 本体阀杆密封
- STEM PACKING or SEAL 填料或密封
- Stem Seal & Type 杆密封材质及类型
- body stem seal 本体阀杆密封;本体阀杆弥缝;阀杆密封
- guide vane stem seal 导叶轴密封 返回 stem seal