| 摘要 |
An alarm horn includes a one-piece molded body which includes a casing portion having opposite open ends, and a first horn disposed in the casing portion and having opposite open ends. The first horn is connected to the casing portion at their one ends. A second horn of a generally cup-shape is disposed in the first horn in spaced relation thereto. Connective portions extend between the first and second horns to connect them together. A sound-generating unit is disposed in the casing and is fixedly connected to the other end of the first horn.
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