• Labyrinth seal and piston ring provide a dual sealing system, keeping oil clean and reducing wear.

    曲径汽活塞环提供密封系统使保持洁净减少磨损。

    youdao

  • Labyrinth seal and piston ring provide a dual sealing system, keeping oil clean and reducing wear.

    曲径汽活塞环提供密封系统使保持洁净减少磨损。

    youdao

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