With gasketed connections, the material of construction of the washer is important, both for compatibility with the gases in use and for its mechanical properties.
对于衬垫接头，垫圈的结构材料对于使用的气体的相容性和垫圈的机械性能都是很重要的。
2
For thrust bearings, and shaft tight and together with the movement of said shaft washer, and bearing or mechanical shell holes into the transition and play supporting role with the said seat.
对于推力轴承，与轴紧配合并一起运动的称轴圈，与轴承座或机械壳体孔成过渡配合并起支承作用的称座圈。
3
Ultrasonic washer parts general applicability, has been widely used in electronics, watches, optical, mechanical, automobile, aviation, nuclear industry, medical equipment and many other industries.