U型圈是液压缸中最常用的油封，它是一种典型的唇口密封件，无论用于活塞还是活塞杆都能获得良好的密封效果。

It's typical lip seal, which is able to gain good seal effect no matter in piston or piston rod.

youdao

U型圈是液压缸中最常用的油封，它是一种典型的唇口密封件，无论用于活塞还是活塞杆都能获得良好的密封效果。

It's typical lip seal, which is able to gain good seal effect no matter in piston or piston rod.

youdao