The status of design and technological experiment of projection welding seal nut joint is introduced in detail.
详细介绍了凸焊密封螺母接头的设计和工艺试验情况。
The design calculation of the large O ring rubber self energized seal (without bolt and nut )used for the vacuum equipment and its application results are introduced.
介绍真空设备法兰采用大直径O形环橡胶自紧式密封（不用螺栓和螺母）的设计计算及其应用效果。
A rubber gasket seal is used between a clamp nut of a barrel screw bolt and the outer wall of the barrel body of the utility model.
筒体螺栓的紧固螺母和筒体外壁之间也采用橡胶垫圈密封。
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