With the optimal project, the defects of Y-type seal-ring were eliminated. As a result, the Y-type seal-ring can satisfy the seal requirement of hydraulic prop with water medium.
依据最优方案成型的Y型密封圈其缺陷得以消除，符合水介质单体液压支柱对密封元件的要求。
The O-shaped sealing ring is adaptable to dynamic seal of water pumps, chemical pumps, hydraulic pressure and pneumatic systems.
适用于水泵、化工泵、液压、气动系统中的动密封。
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