o ring seal o 形面密封 ; 形密封圈密封
O ring rubber seal O 型橡胶密封圈
O-ring housing seal O 形圈密封的房屋
o-seal ring o 形密封圈
O seal: usually the dismantled o seal should be changed totally, but the gasket, etc without breakage also can be reused.
形密封：一般经过拆卸的O形密封应全部更换，对其它密封垫片等，只要没有破损，也可以复用。
Bearing seal with O-ring, O-ring seal with a reliable, long life, and two-way sealing characteristics.
轴承的密封采用O型密封圈，o形密封圈具有密封可靠、寿命长、且双向密封的特点。
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