| 摘要 |
The stopper (2) has, on its outer periphery, a conical sealing flange (3), by means of which the stopper rests on the upper surface of the edge zone of the sieve (1). The sieve (1) is substantially flat in the region of the stopper (2). The stopper (2) has pegs (6) or the like, which reach into or are insertable into the openings (8) of the sieve (1). <IMAGE> |
