piston oil ring
短语词组
- piston oil ring groove 活塞油環槽
- piston ring oil hole 活塞環油孔
- PISTON RING OIL 油環組郃
- slotted oil piston ring 開槽活塞油環
- flexible oil piston ring 撓性油環
- oil piston ring 活塞油環;油環
- flexline oil piston ring 撓曲線活塞刮油環
- cromflex oil piston ring 鋼制帶脹圈的活塞環
- conformable oil piston ring 活塞撓性油環 返回 piston oil ring