Casing for electronic devices and method for producing the same

摘要

A casing for an electronic device and a method producing the same. The method comprises the following steps. First, a first member is formed of a first metallic material, and a second member is formed of a second metallic material. In the second member, at least one step portion is formed. Then, the casing is produced by combining the first member and the second member in a manner such that the step portion corresponds to the unit and the second member is nearer to the unit than the first member.