The structure consists of four parts : shell, whole seal assembly, hanger assembly, selfseal rubber core assembly.
其结构由壳体、全封总成、悬挂器总成、自封胶芯总成四部分构成。
2
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。
3
You may find the other side to be extremely difficult and self-oriented, to such a degree you may wonder if you even want to seal a deal with this person.