| 摘要 |
The package has two telescopic tubular parts (4, 5), the cleaning agent being accommodated in the inner part and being prevented from escaping by a closure (6) inside the outer part. Said closure is attached to the outer part along its circumference and, during the relative displacement of the inner part, is separated from the outer part over the greatest part of its circumference by the sharp lower edge (54) of said inner part and is also folded down so that the cleaning agent can escape freely. A flange (7), removed from the outlet end of the outer part, ensures that the package can be fitted onto the pipe (1), the outlet end being located completely inside the pipe. <IMAGE>
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