20230819

每週連續輥軋花圖設計練習：燕尾槽窗框型材。

Weekly Roll flower design and practice: 

Dovetail Slot.

----

Reference:

[1] CN103817257A-燕尾槽窗框型材的成型工藝

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

----