Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
June 15, 2010
Patent Application Number
11099701
Date Filed
April 6, 2005
Patent Primary Examiner
Patent abstract
A first step of performing solution treatment to a pipe material of a precipitation-hardening type aluminum alloy of high hardness extruded, a second step of performing spinning work to the solution-treated pipe material, and a third step of performing artificial aging to the spinning-worked pipe material.
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