piston ring
短语词组
- piston oil ring 活塞油環
- piston compression ring 活塞壓縮環
- piston guard ring 活塞護環
- wiper piston -ring 刮油活塞環
- piston valve ring 活塞閥填密環;變量閥環
- Piston sealing ring 活塞密封圈
- piston and ring 活塞和活塞環
- piston packing ring 活塞脹圈;活塞填料環;活塞環
- equalizing piston packing ring 平衡活塞密封圈 返回 piston ring