piston oil ring
短语词组
- piston oil ring groove 活塞油环槽
- piston ring oil hole 活塞环油孔
- PISTON RING OIL 油环组合
- slotted oil piston ring 开槽活塞油环
- flexible oil piston ring 挠性油环
- oil piston ring 活塞油环;油环
- flexline oil piston ring 挠曲线活塞刮油环
- cromflex oil piston ring 钢制带胀圈的活塞环
- conformable oil piston ring 活塞挠性油环 返回 piston oil ring