With the advantages of frictionless, no wear, without lubricating, no pollution, low consuming and long life, it suits high and super high speed, vacuum condition and some of the special condition.

• 它具有无摩擦、无磨损、无需润滑、无污染、能耗小以及使用寿命长等优点，适用于各种高速或超高速、真空等特殊环境场合。