Aluminum h Flange is one of the main part of the fabrication of the phenolic air duct,it played a great role in connecting panels.The function of the Aluminum h Flange is for connecting the phenolic pre-insulated air duct to the diffuser and grilles.Normally it will be cutted in 4 meter long,80 meter per bundle and be packed by plastic film.It's for Pre insulated phenolic duct used.

Product Features:

1.Thickness:20mm/30mm.

2.Length:4mtr length.

3.Specially for phenolic ductwork used.