It's a simple structure: horizontal menu, main heading panel, and content area.
结构很简单：横向菜单，主标题面板和内容区。
Some main points about the cold heading process and its die design are also involved.
介绍了冷镦工艺过程和模具设计要点。
Some main points about the cold heading process and its die design are also involved.
介绍了冷镦工艺过程和模具设计要点。
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