| 摘要 |
A plug for closing the end of a pipe is formed from a one-piece, flat blank which is formed to a plug which is inserted into the pipe (20). The blank comprises a first part (2) which in the closed position covers the end opening (19) of the pipe (20), and a second part (12, 13, 15) which in the closed position extends into the pipe (20). The second part has at least one flap (13, 15) which is foldably connected to the first part (2) and which in the closed position is in frictional engagement with the inside surface of the pipe (20). <IMAGE> |
