Both layout design and die structure design are stated, and the structure design of convex die components of rolling drum are introduced in detail.
叙述了卷筒排样设计及模具结构设计，并介绍了卷筒凸模零部件的详细结构设计。
Both layout design and die structure design are stated, and the structure design of convex die components of rolling drum are introduced in detail.
叙述了卷筒排样设计及模具结构设计，并介绍了卷筒凸模零部件的详细结构设计。
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