| 摘要 |
A cooking utensil comprising a first layer cooking surface, the first layer formed from a flat sheet of stainless steel; a second layer beneath the first layer, the second layer formed from a flat sheet of aluminum and thermally bonded with the first layer; and a third layer formed from a sheet of stainless steel and thermally bonded with the second layer. The third layer includes a plurality of perforations into which some of the second layer extends, the third layer directly contacting a heat source and allowing direct contact between the heat source and the second layer.
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