The forming technology is the key step in the manufacturing processes.
四层卷焊管生产的关键技术是其成型技术。
Manufacturing processes forming under combination of tensile and compressive conditions - Part 7: Hydroforming widening; Classification, subdivision, terms and definitions.
在拉伸和加压复合条件下复合成形的制造工艺。第7部分：液压成形加宽。分类、细类、术语和定义。
The technical requirements in aluminium easy open ends manufacturing processes, the rivet forming principles and the score process control are emphatically analysed.
介绍了铝质易开盖对铝合金材料性能的要求，着重分析了铝质易开盖生产过程中的技术要求，以及铆钉成形原理、刻痕的工艺控制。
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