-spiral duct/ air duct/ vent duct/pipe type: R size: 80mm-2000mm galvanized steel 1.Economical to install 2. Low air leaka

--The advantages of  Spiral ducts/vent duct/air duct compared to traditional rectangular duct are numerous and compelling: -Fine appearance;-Economical to install;- Low air leakage, optimal airflow characteristics, and less pressure drop allow smaller and more efficient air moving equipment ;-Inherently stronger, allowing the use of lighter gauge, less costly metals ;-Efficiently manufactured from strip steel to any diameter ;-Spiral duct's smooth interior traps less dust and is easier to clean.We have pre-insulated spiral duct and un-insulated duct.

Our products will satisfy every customer's requirement.

Located in Dalian,it takes 2 hours by airplane from Beijing(Shanghai) to Our factory.

You visit is welcomed.

Spiral duct/ductwork/air duct/vent duct