~ air duct flange ~ duct flange, TDC flange ~ 20mm, 30mm, 40mm regular sizes ~ 25mm & 35mm sizes available

20/25/30/35/40mm air duct flange

air duct flange, duct flange, TDC flange

duct flange, 40mm flange, TDC duct flange

Octopus Metal offers wide range of TDC flanges at very competitive price through a complete supply chain.

Material	Galvanized Steel, Stainless Steel
zinc coating	80g / m² - 275 g / m² (G25 - G90)
Model	OCT-F20/30/40-A         OCT-F20/25/30/35-B

Octopus Metal Co., Ltd is the leading HVAC Ductwork manufacturer in China. Our annual processing capacity reaches 120 000 tons (1.5 million m² ).

We operates 4 efficient production sites for galvanized rectangular air duct manufacture.

Our duct works are certified by China National Accreditation Service for Conformity

Assessment (CNAS).

· ISO Certificate :

· Our Workshop :

· HVAC Duct & Accessories Certificate :

· Our Product :

· Global Expo :

20/25/30/35/40mm air duct flange