Rings for automotive engine usually have butt joints, but in some heavy-duty engines, the joints may be angled, lapped, or of the sealed type.

汽车发动机上的活塞环通常是有接口的。但在一些重型发动机上，活塞环的接口可以是斜角接口，搭接式或密封式的。

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Rings for automotive engine usually have butt joints, but in some heavy-duty engines, the joints may be angled, lapped, or of the sealed type.

汽车发动机上的活塞环通常是有接口的。但在一些重型发动机上，活塞环的接口可以是斜角接口，搭接式或密封式的。

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