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US08426058B2 Metal-resin composite and method 有权
金属树脂复合材料及方法

Metal-resin composite and method
Abstract:
A metal-resin composite comprises a metal substrate with concavities in the surface, a first coating layer on the surface of the metal substrate, a second coating layer on the first coating layer, and a third coating layer on the second coating layer. The first coating layer fills the concavities and covers the surface of the substrate.
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