| 摘要 |
PURPOSE: A double bottom cooker is provided to prevent the peeling of a coating due to deformation and improve durability by minimizing thermal deformation of the cooker. CONSTITUTION: A double bottom cooker(1) is made by combining an upper plate(2) with a lower plate(3) and includes a recessed part(4) of the upper plate, a recessed part(5) of the lower plate, and a rivet unit(6). The recessed part of the upper plate is formed on the upper plate. The recessed part of the lower plate is formed on the lower plate. The rivet fills the recessed parts of the upper and lower plates and partially connects the upper and lower plates.
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