The seal ring is placed overhead to extend the service life.
密封胶圈上置，延长使用寿命。
Bearing seal with O-ring, O-ring seal with a reliable, long life, and two-way sealing characteristics.
轴承的密封采用O型密封圈，o形密封圈具有密封可靠、寿命长、且双向密封的特点。
The seal ring made from exotic materials features such specialties as high-temperature resistance, abrasion-resistance, long service-life, etc.
特殊材料制成的密封圈，具有耐高温。耐磨损、使用寿命长的特点。
The exhausting anti-plugging device is good in seal effects, safe and reliable in operation, meanwhile, the service life of the seal ring is also greatly prolonged;
该排气防堵装置密封效果好，使用安全可靠，同时也大 大的延长了密封圈使用寿命；
The exhausting anti-plugging device is good in seal effects, safe and reliable in operation, meanwhile, the service life of the seal ring is also greatly prolonged;
该排气防堵装置密封效果好，使用安全可靠，同时也大 大的延长了密封圈使用寿命；
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