| 摘要 |
Notches 23 e are filled with part of an elastic material that is injection-molded in a region containing the notches 23 e, so that a plate member 23 b is taken in by the notches 23 e through the repulsive force of the elastic material. Thus, the plate member 23 b is secured. Further, the elastic material filling the notches 23 e enlarges the joined portion between the plate member 23 b and the gasket 24 b. Accordingly, the gasket 24 b is firmly joined to the surface of the plate member 23 b, and can be prevented from being lifted up from the plate member 23 b. Thus, the plate member 23 b is firmly secured to the separator main body 25.
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