20240629

每週 (20240629)連續輥軋製程(花圖)、輥輪設計(COPRA RF) 練習：防火閥外框。

Weekly (20240629) Roll-forming process (roll flower) and roller design (COPRA RF) practice: Fire Damper Frame.

#REFERENCE:

[1] CN108160856A, A kind of fire damper frame structure and its forming method, https://patents.google.com/patent/CN108160856A/

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

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