提出了一种大功率、大负载、长行程工作条件下，液压缸活塞与缸体之间、活塞杆与缸盖之间密封方式的设计方案。
Design blue print of the hydraulic cylinder seal style was put forward for the hydraulic cylinder with large power, larger load and long journey.
Hytork角行程执行器由活塞牵引转动，透过一个简单的中央模架和齿轮将直行程转成角行程，产品设计寿命长。
The Hytork range of quarter turn actuators are piston operated. The linear movement is translated to quarter turn through a simple central modular rack and pinion, designed for long life.
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