通过对投递箱箱盖的成形工艺分析 ，介绍了其弯形压边模结构及工作过程 ，阐述了在有花纹及字母的成形模设计中应注意的事项。
Through the analysis of the technological process for the delivery box lid, the structure working process of the flanging and pattern_pressing die were introduced.
通过对投递箱箱盖的成形工艺分析 ，介绍了其弯形压边模结构及工作过程 ，阐述了在有花纹及字母的成形模设计中应注意的事项。
Through the analysis of the technological process for the delivery box lid, the structure working process of the flanging and pattern_pressing die were introduced.
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