For a long time, the more to their cars to its regular rubber products, such as tyre, belts and seal that often check article.

对于长期停放的汽车，更要定期对其上的橡胶制品，如轮胎、传动带以及密封条等经常检查。

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This paper introduces a reciprocating seal with high pressure and small size. The seal is composed of rubber V-ring and PTFE V-ring, and has long lifetime, good sealness and low friction coefficient.

本文介绍了一种用于高压小尺寸往复密封中，具有寿命长、密封性好、摩擦系数小的组合密封，即V型橡胶圈和V型PTFE圈组合密封。

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