High Reliability: The seal contains a simple, permanent magnetic structure and a non-wearing magnetic fluid. The only parts subject to mechanical wear are self-contained ball bearings.
良好可靠性：密封圈由永磁结构和稳定的磁性流体组成，所以机械磨损仅发生在轴承上。
2
From the outside of the seal of the pollutants permanent embedded seal on the blade surface and cause shaft sealing lip premature wear of margin;
污染物从密封的里外面永久性的嵌入密封刃口上造成轴表面和密封唇缘的过早磨损；
3
Once written into the event log, this information shall become a permanent record within the seal and shall not be modified or erased by either the seal or an outside entity.