Moreover, the obturating ring can reliably seal the cylinder and the end cover.
且密封圈能将筒体和端盖可靠的密封。
2
The invention relates to a method for permanently obturating holes, especially in metal sheets or plastic parts of automobile bodies.
本发明涉及一种永久地封闭孔、尤其是封闭汽车车体的金属片或塑料 部件中的孔的方法。
3
Conclusion: it is simple, effective, less painful and easy to popularize to cure epistaxis by obturating nasal cavity with PVF medical sponge and Vaseline gauze piece.