20231007

每週連續輥軋製程(花圖)設計(COPRA RF)與練習：
十十形管。

Happy Double Tenth Day with a long weekend.

(Taiwan National Day)

Weekly roll-forming process design (COPRA RF) and practice:

++ Shaped Tube.

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Tags: #ColdRollForming , #RollForming , #RollFlower , #COPRA, #COPRARF .

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