| 摘要 |
A muffler structure in which a subassembly formed by fixing an inner cylinder and a separator is not welded to the outer cylinder in welding an overlapping portion of a sheet metal wrapped around the subassembly. A subassembly is formed by fixing an inner cylinder and a separator. An outer cylinder is formed by first wrapping a sheet metal around the subassembly and next welding an overlapping portion of the sheet metal. The subassembly is formed with a recess opposed to a welded portion of the outer cylinder.
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