Aluminum invisible flange joint H bayonet U type flange F type air duct panel flange

we have a lot of air duct Installation accessories,such as aluminum flanges and pvc flanges. Today we introduce aluminum flanges to you.Almost aluminum flanges are 4000mm which can be avoid waste material. 

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Aluminum Invisible Flange Joint H Bayonet U Section Flange F Section Flange for Air Duct Panel
we have a lot of air duct Installation accessories,such as aluminum flanges and pvc flanges. Today we introduce aluminum flanges to you.
Almost aluminum flanges are 4000mm which can be avoid waste material.

Aluminum Invisible Flange Joint H Bayonet U Section Flange F Section Flange for Air Duct Panel
Aluminum Invisible Flange Joint H Bayonet U Section Flange F Section Flange for Air Duct Panel
Aluminum Invisible Flange Joint H Bayonet U Section Flange F Section Flange for Air Duct Panel
Aluminum Invisible Flange Joint H Bayonet U Section Flange F Section Flange for Air Duct Panel
Aluminum Invisible Flange Joint H Bayonet U Section Flange F Section Flange for Air Duct Panel
Aluminum Invisible Flange Joint H Bayonet U Section Flange F Section Flange for Air Duct Panel
Aluminum Invisible Flange Joint H Bayonet U Section Flange F Section Flange for Air Duct Panel
Aluminum Invisible Flange Joint H Bayonet U Section Flange F Section Flange for Air Duct Panel
Aluminum Invisible Flange Joint H Bayonet U Section Flange F Section Flange for Air Duct Panel
Aluminum Invisible Flange Joint H Bayonet U Section Flange F Section Flange for Air Duct Panel
 

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