| 摘要 |
The method comprises forming grooves(3) (4) in the outer bottom of the oven(1) and projecting part(2) in the inner bottom, then cutting hole, which is about 95% of the inner bottom area, and making aluminum plate the bottom of stainless steel oven by pouring aluminum melt to the outer bed, which is set by mould, between the projecting part and grooves.
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