| 摘要 |
An outer case 10 accommodating a gas combustion apparatus main body comprises a case main body 2 opening forward, and a front cover 3 closing a front end opening of the case main body 2 . A waterproof packing material 17 is sandwiched between inner peripheral flanges 20 and 39 formed on inner peripheral edges of the front end opening of the case main body 2 and a rear end of the front cover 3 . To deteriorate outward appearance and cleaning easiness of a connected portion between the front cover 3 and the case main body 2 , and to stably secure waterproof of the connected portion for a long term, a protection plate covering a range extending along an upper edge of a front end opening of the case main body 2 of the packing material 17 is possessed to the front cover 3 or the case main body 2.
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