发明授权
US4715903A Aluminum offset coil, and method for its production 失效
铝偏心线圈及其生产方法

Aluminum offset coil, and method for its production
摘要:
An aluminum offset coil, having a surface zone of a predominantly recrystallized globular, fine grain structure, and a core zone of a greatly work-hardened structure, for use in offset printing plates, and a process for its preparation.
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