| 摘要 |
For emptying the contents of a bag 3 sealed along all four edges, a hole is cut in the corner of the bag, and a tube 1 having an external thread is inserted therein, so that a part of the tube projects from the bag. A nut 2 with tapered hole is screwed around the outside of the tube so that the bag material surrounding the tube is held fast to the tube. <IMAGE>
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