The inventive working seal ring is formed by filling the hollow rubber seal ring with a gaseous material mouth on its side with material.
大口径管道柔性内胀式密封圈及连接结构和方法。工作密封圈用侧面装有气料嘴的中空橡胶密封圈内充填物料而形成。
The inventive working seal ring is formed by filling the hollow rubber seal ring with a gaseous material mouth on its side with material.
大口径管道柔性内胀式密封圈及连接结构和方法。工作密封圈用侧面装有气料嘴的中空橡胶密封圈内充填物料而形成。
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